參閱以下部落格
星際小孩 http://astrokid.blogspot.com/
芳鄰成長園 http://chang212.blogspot.com/
Reflection http://www.chieftain.idv.tw/archives/category/education/
(1)
思考如何以部落格小眾媒體的特性, 提出一個具有小眾或大眾社會影響力的部落格經營提案,
這當中包含閱讀對象選定, 主題設定, 內容與架構規劃, 常態性經營, 預計達成指標值與影響力預估,
所需資源,預期的挑戰.
題目可以環繞你所參加的社團, 你的家鄉或社區, 你的分享與關心, 你的朋友, 高中同學, 電影, 音樂, 學業, 生涯,
試著以部落格創造凝聚力, 進而引起注意或發揮影響力.
(2)
實際建構此部落格, 並且提出或實際展現你的經營之道.
注意
1. 實作不限於 www.blogger.com 你可以自由挑選部落格, 但是請勿
使用廣告太多的部落格網站.
2. 請於此公佈你的成果網址.
3. 成果繳交日期: 1/17/2006
Wednesday, December 14, 2005
12-10-2005 Homework Assignments
Reading Assignments:
The Internet Value Network (p.17~p.28, Chap 2.)
Properties of the Internet (p. 32~p.38, Chap 3.)
Impacts of the Internet on 5-CS (p.38~p.46 Chap. 3)
A Taxonomy of Business Models (Chap. 6)
The Internet Value Network (p.17~p.28, Chap 2.)
Properties of the Internet (p. 32~p.38, Chap 3.)
Impacts of the Internet on 5-CS (p.38~p.46 Chap. 3)
A Taxonomy of Business Models (Chap. 6)
Tuesday, December 13, 2005
Saturday, December 10, 2005
12-17-2005 Internet Business Models (2)
Components of Business Models
Profit Model (How to make money)
Customer Value (why)
Scope (to whom, what to offer)
Pricing model
Internet activities
Implementation (organization, people, …)
Sustainability (competitive advantage)
Cost Structure
Case Studies
1. Software business models: Skype, Firefox
2. eLearning Business Models: CyberMBA, Credu, SCU
Topics:
The Internet Value Network (p.17~p.28, Chap 2.)
Properties of the Internet (p. 32~p.38, Chap 3.)
Impacts of the Internet on 5-CS (p.38~p.46 Chap. 3)
A Taxonomy of Business Models (Chap. 6)
Profit Model (How to make money)
Customer Value (why)
Scope (to whom, what to offer)
Pricing model
Internet activities
Implementation (organization, people, …)
Sustainability (competitive advantage)
Cost Structure
Case Studies
1. Software business models: Skype, Firefox
2. eLearning Business Models: CyberMBA, Credu, SCU
Topics:
The Internet Value Network (p.17~p.28, Chap 2.)
Properties of the Internet (p. 32~p.38, Chap 3.)
Impacts of the Internet on 5-CS (p.38~p.46 Chap. 3)
A Taxonomy of Business Models (Chap. 6)
Saturday, November 19, 2005
11-19 Homework
1. Reading Assignments
Chap. 1~3 of Textbook (A. Afuah and C. Tucci)
2. Summary writing of Chap. 4. Briefly outline the points of this chapter in your own words.
3. Regarding wireless services, list 3 business models that you think can make money.
Chap. 1~3 of Textbook (A. Afuah and C. Tucci)
2. Summary writing of Chap. 4. Briefly outline the points of this chapter in your own words.
3. Regarding wireless services, list 3 business models that you think can make money.
Friday, November 18, 2005
Monday, November 14, 2005
Mobile commerce
Business models of Wi-Fi, Mesh, WiMAX enabled services.
Business models of mobile commerce.
Shovel
1. Test equipment
2. AP sales
3. Wi-Fi Skype phones, VoIP over wireless
4. WiMAX cellular for vocal, multimedia
Focal point: Competitive advantage, unfair advantage
Aggregator
5. Global/National Roaming
Examples: Boingo, iPass, GRIC
Focal point: fragmented markets
6. Access Service Operators (Chain stores, café, hotel, …)
NB maybe wrong target; WiMAX WiFi Handset better
Content
7. Game over Wireless
8. Content over Wireless
Business models of mobile commerce.
Saturday, November 12, 2005
History of media evolution
Milestones
Business impact
translation issues (text needs mass translation; pictures and videos do not.)
market globalization
real time, anytime
- 唐三藏西天取經
- 古騰堡聖經
- 進口西書
- 電子郵件(Bitnet), 進口 CD
- MIME, 進口 DVD
- ftp for multimedia download (mp3, mpeg)
- Streaming video and audio, Real Networks
- BT
Business impact
translation issues (text needs mass translation; pictures and videos do not.)
market globalization
real time, anytime
Saturday, November 5, 2005
11-05-2005 Homework
1. Name a leading USA, Japanese, and Korean VoIP operator company. List their market shares, revenues, and profits in recnt years.
2. List 3 cities that have deployed large scale Wi-Fi, Mesh, or WiMAX networks. What are the purposes, applications, user populations, respectively?
3. Reading Assignments:
Smartphones: Symbian vs. Win CE
4. 預習 11-19 課堂討論題目, 蒐集相關資料, 以及於你的Blog記下發言草稿
2. List 3 cities that have deployed large scale Wi-Fi, Mesh, or WiMAX networks. What are the purposes, applications, user populations, respectively?
3. Reading Assignments:
Smartphones: Symbian vs. Win CE
4. 預習 11-19 課堂討論題目, 蒐集相關資料, 以及於你的Blog記下發言草稿
Saturday, October 29, 2005
IP Networks
Special topics
1. What drives wireless broadband and makes it fly? What does it mean in terms of industries and business?
2. What are the technological and business impacts and implications of emergence of digital camera, IP Phone, digital TV, & digital broadcast?
3. Why all IP networks? Please explain briefly. What does it mean in terms of industries and business?
1. What drives wireless broadband and makes it fly? What does it mean in terms of industries and business?
2. What are the technological and business impacts and implications of emergence of digital camera, IP Phone, digital TV, & digital broadcast?
3. Why all IP networks? Please explain briefly. What does it mean in terms of industries and business?
10/29 Homework
Compare 3 VoIP software- skype, Gizmo, & Google Talk
1. 如果你的作業引用他人文章, 務必註明出處或是網址, 以示尊重他人創作.
2. 引用以單句為限, 並且明確以引號標示, 切勿整段引用甚至全文引用.
3. 引用來源必須具備權威性, 建議使用學術或研究單位, 或是知名公司的資料, 不可使用報紙或一般性商業文章等二手傳播文字.
11/5 Class VoIP Business
VoIP Business
1. Business models of VoIP
2. Opportunities of Mobile VoIP
3. Automated self-service over VoIP
1. Business models of VoIP
2. Opportunities of Mobile VoIP
3. Automated self-service over VoIP
Sunday, October 23, 2005
10/29 Class VoIP
VoIP Technology
Peer to peer
Features of Skype
Client-Server, Non SIP
Client-Server, SIP (references)
Softphones are not all the same.
CMMi
VoIP Business
1. Business models of VoIP
2. Opportunities of Mobile VoIP
3. Automated self-service over VoIP
Peer to peer
Features of Skype
Client-Server, Non SIP
Client-Server, SIP (references)
Softphones are not all the same.
CMMi
VoIP Business
1. Business models of VoIP
2. Opportunities of Mobile VoIP
3. Automated self-service over VoIP
10/22 Homework
1. List 10 applications of WiMAX
2. Compare WiMAX 802.16e versus 3G and 4G.
References:
Broadband wireless applications
WiMAX protocols
2. Compare WiMAX 802.16e versus 3G and 4G.
References:
Broadband wireless applications
WiMAX protocols
Saturday, October 22, 2005
Saturday, October 15, 2005
Homework 10/15
1 Take a look at the bird flu news report and the following labs.
i. Get the most from Google-1
ii. Get the most from Google-2
Then do a literature survey on the net about bird flu. Try to answer the question as described in
Get the most from Google-3
Hint: Please write on your own blog and post the link in the comment below.
2. Reading assignments: prepare yourself for 10/22 class. We will discuss the subjects next week.
10/22: WiMAX
WiMAX Business
1. WiMAX 802.16e is not substitute of 3G.
3G spans from physical layer to applications while 802.16e is MAC.
2. WiMAX is part of a bigger infrastructure.
Still needs networking and transport control to support applications.
3. WiMAX highlights state of the art of computer networking while 3G and beyond is state of the art of telecommunications.
4. WiMAX points a new direction of cost down and quality of service. Maybe it is time of paradigm shift from telecom (3G and B3G) to computer networking (IEEE802). Remember 802.16 is basically non contention-based while 802.3 and 802.11 are all contention-based.
1. WiMAX 802.16e is not substitute of 3G.
3G spans from physical layer to applications while 802.16e is MAC.
2. WiMAX is part of a bigger infrastructure.
Still needs networking and transport control to support applications.
3. WiMAX highlights state of the art of computer networking while 3G and beyond is state of the art of telecommunications.
4. WiMAX points a new direction of cost down and quality of service. Maybe it is time of paradigm shift from telecom (3G and B3G) to computer networking (IEEE802). Remember 802.16 is basically non contention-based while 802.3 and 802.11 are all contention-based.
10/15 class
大未必是美, 小兵能立大功
今日世界, 計畫常跟不上變化, 培養實力加上速度, 發揮勇氣與溫柔的力量, 成就大事業, 有為者亦若是
做十件不成功的事, 不如只做一件成功的事
沒有效益的事, 何必去做.
在做中學是真學習
真功夫, 真本事, 切勿追求表面或只重形式
精益求精, 虛心接納, 止於至善
善用知識, 洞見細微, 講究自律, 重視細節
個人修練
今日世界, 計畫常跟不上變化, 培養實力加上速度, 發揮勇氣與溫柔的力量, 成就大事業, 有為者亦若是
做十件不成功的事, 不如只做一件成功的事
沒有效益的事, 何必去做.
在做中學是真學習
真功夫, 真本事, 切勿追求表面或只重形式
精益求精, 虛心接納, 止於至善
善用知識, 洞見細微, 講究自律, 重視細節
個人修練
Friday, September 30, 2005
10/1 Class
Saturday, September 24, 2005
Homework 09/24/2005
1. What kind of broadband wireless services are needed in the city you live? Why?
2. Can Wi-Fi phones compete with 3G? Can WiMAX phones compete with 3G? Why?
3. Comment on Success of Handhelds.
Reading Assignments:
1. TW4G
2. WiMAX updates
3. Softphones are not all the same.
2. Can Wi-Fi phones compete with 3G? Can WiMAX phones compete with 3G? Why?
3. Comment on Success of Handhelds.
Reading Assignments:
1. TW4G
2. WiMAX updates
3. Softphones are not all the same.
Success of Handhelds
Treo 600
1. Formfactor (User Interface and Human factors)
2. Right targetting (email & phone)
3. User experiences (QWERT)
4. Reliability (Hardware and software, battery power)
5. user value (User satisfaction is more important than differentiation)
1. Formfactor (User Interface and Human factors)
2. Right targetting (email & phone)
3. User experiences (QWERT)
4. Reliability (Hardware and software, battery power)
5. user value (User satisfaction is more important than differentiation)
Saturday, September 17, 2005
請將作業寫在自己的 Blog
請將你的作業寫在你的 blog, 然後到
Homework 1 的Comment 登錄作業blog網址就可以了.
請勿將作業直接寫在 comment
可以參考陳一德, 謝鴻儒同學Homework 1 的方式.
另外, 謝鴻儒同學的 Homework 1 網址可以直接點選,
這是很好的做法, 更有利於前往閱讀.
http://minstral.blogspot.com/2005_02_01_minstral_archive.html
Homework 1 的Comment 登錄作業blog網址就可以了.
請勿將作業直接寫在 comment
可以參考陳一德, 謝鴻儒同學Homework 1 的方式.
另外, 謝鴻儒同學的 Homework 1 網址可以直接點選,
這是很好的做法, 更有利於前往閱讀.
http://minstral.blogspot.com/2005_02_01_minstral_archive.html
Homework 1 09/17/2005
1. Create a blog to host your own leanring materials and homework.
Blog spaces can be found at http://www.blogger.com
2. Comment on eBay acquires Skype.
3. Study Lecture 1. 網際網路的趨勢, including but not limited to
Firefox, RSS, Blog, Google, Skype, VoIP, P2P, All IP Network
Due 9/24 at 1:00 P.M.
Syllabus
Time: Saturday 13:00-16:00
3. business models and operations
4. brand management
5. Competitive Strategies, Differentiation, Pricing, Niche. Implementation
Place: 中原大學社區資源中心 芳鄰成長園
Grading Policy: Participation (Presence, Challenging and Answers, Proactiveness) 50%, Homework 50%, including Midterm Paper, Final Paper
Instructor: Associate Professor Yao-Jen Chang
Email:
yjchang at cycu dot edu dot tw
Teaching Assistant: 時定樑 g9376024@cycu.edu.tw
Hear how people who have taken the course said.
Textbook
Internet Business Models and Strategies, 2nd ed., Allan Afuah and Christopher Tucci, McGraw-Hill 2003. (新月圖書東華書局代理進口)
Reference
1. 張耀仁，劉永信, 電子商務系統, 高立書局, 2001年1月三版.
Course Outline
1. 網際網路的趨勢
Firefox, RSS, Blog, Google, Skype, VoIP, P2P, All IP Network
3. business models and operations
4. brand management
5. Competitive Strategies, Differentiation, Pricing, Niche. Implementation
Entry Barrier, Ecology, Business Opportunities, Best Practices
6. marketing at a digital age
Wednesday, September 14, 2005
Tuesday, September 13, 2005
IEEE 802.16 Session 39
Executive Summary of Things Leanred
* Protocols
1. 802.16e spec to be finalized in Oct. 2005. So the Session 39 I am in is the final meeting
to make last changes, if any. Every item of 16e spec was read thru one by one during the session.
2. 802.16-2004, also known as 802.16d, has obsoleted 802.16a.
3. 802.16-2004 is for fixed broadband wireless only.
* Cerification
4. Cetecom Espanol (Spain) has certified WiMAX products since July 2005. Redline, a Canada based
WiMAX vendor, has get certified with its RedMAX product line.
* reality check
5. 16e may have battery issues. This issue must be taken care of precautiously.
6. 16e will enable verious mobile scenarios up to 120km/h.
7. 16e will be backward compatible, which means it also supports 802.16-2004
* outlook
8. WiMAX phones may undermine the base of 3G. In fact, Korea calls WiMAX phones as 4G.
9. 3.4GHz-3.7GHz spectrum is occupied by CHT-Sintel satellite only. So this is not a global issue or difficult one.
DGT of Taiwan expects to resolve it very soon.
* Session visibility
10. IEEE 802.16 chair, 802.16 working group chairs all arrived in session.
This is a superb IEEE meeting full of celebrities that has ever seen in Taiwan.
* WiMAX-enabled Services
11. Deployment of WiMAX services by ISP are real, for example Sydney of Autrailia, and many cities in North America.
* Vendors
12. Gemtek (正文), CyberTAN are 2 existing 802.16 vendors located in Taiwan.
CyberTAN is the co-host of this IEEE Session, in fact. Dr. Stanly Wang of CyberTAN chaired a series of panals today.
13. Nortel focused on 802.11-based Wireless Mesh, no solution yet on WiMAX known to the market.
14. Redline is still the leading company in WiMAX. Intel has made every efforts to dominate chip markets of WiMAX.
15. Wavesat, Alvarion, Aperto, and Samsung show strong commitments on WiMAX product R&D.
* Predictions
16. The really juicy market is not the fixed broadband wireless (802.16-2004) but in-home multimedia distribution
and mobile users on the road (802.16e).
17. The WIrelessMAN-OFDMA technology will be the winning air interface for 802.16e.
18. Let's forget license exempt WiMAX. The protocal will disappear.
19. In the future, 802.11 may disappear and the function of WLAN is replaced by 802.16e.
So the broadband wireless future may be an all-IP, all-WiMAX wireless broadband world.
802.11 will eventually die because of no Quality of Service (QoS).
20. WiMAX supports email, http, VoIP, Video Conference, and even real time service and steaming services
as described by 3GPP. WiMAX does it robustly with less cost.
* Protocols
1. 802.16e spec to be finalized in Oct. 2005. So the Session 39 I am in is the final meeting
to make last changes, if any. Every item of 16e spec was read thru one by one during the session.
2. 802.16-2004, also known as 802.16d, has obsoleted 802.16a.
3. 802.16-2004 is for fixed broadband wireless only.
* Cerification
4. Cetecom Espanol (Spain) has certified WiMAX products since July 2005. Redline, a Canada based
WiMAX vendor, has get certified with its RedMAX product line.
* reality check
5. 16e may have battery issues. This issue must be taken care of precautiously.
6. 16e will enable verious mobile scenarios up to 120km/h.
7. 16e will be backward compatible, which means it also supports 802.16-2004
* outlook
8. WiMAX phones may undermine the base of 3G. In fact, Korea calls WiMAX phones as 4G.
9. 3.4GHz-3.7GHz spectrum is occupied by CHT-Sintel satellite only. So this is not a global issue or difficult one.
DGT of Taiwan expects to resolve it very soon.
* Session visibility
10. IEEE 802.16 chair, 802.16 working group chairs all arrived in session.
This is a superb IEEE meeting full of celebrities that has ever seen in Taiwan.
* WiMAX-enabled Services
11. Deployment of WiMAX services by ISP are real, for example Sydney of Autrailia, and many cities in North America.
* Vendors
12. Gemtek (正文), CyberTAN are 2 existing 802.16 vendors located in Taiwan.
CyberTAN is the co-host of this IEEE Session, in fact. Dr. Stanly Wang of CyberTAN chaired a series of panals today.
13. Nortel focused on 802.11-based Wireless Mesh, no solution yet on WiMAX known to the market.
14. Redline is still the leading company in WiMAX. Intel has made every efforts to dominate chip markets of WiMAX.
15. Wavesat, Alvarion, Aperto, and Samsung show strong commitments on WiMAX product R&D.
* Predictions
16. The really juicy market is not the fixed broadband wireless (802.16-2004) but in-home multimedia distribution
and mobile users on the road (802.16e).
17. The WIrelessMAN-OFDMA technology will be the winning air interface for 802.16e.
18. Let's forget license exempt WiMAX. The protocal will disappear.
19. In the future, 802.11 may disappear and the function of WLAN is replaced by 802.16e.
So the broadband wireless future may be an all-IP, all-WiMAX wireless broadband world.
802.11 will eventually die because of no Quality of Service (QoS).
20. WiMAX supports email, http, VoIP, Video Conference, and even real time service and steaming services
as described by 3GPP. WiMAX does it robustly with less cost.
Wednesday, September 7, 2005
wireless mesh to rescue flood in New Orleans
University of Illinois Urbana Champaign using in-house developed wireless mesh to rescue flood in New Orleans
related blog
softphones are not the same- skype, Gizmo, & Google Talk
agreed the following insights:
" Google 指出,未來他們的 Google Talk 將會相容於 SIP
這個影響是比較大的,且用 SIP 要跨平台互通語音也比較沒問題的
且 Gizmo Project (SIP-based)也已經跟 Google Talk 簽訂協議
在未來的版本, Gizmo Project 跟 Google Talk 的用戶彼此之間可以互通 IM 及 VoIP
如此一來,其他的 SIP 廠商應該也會陸續跟進
這樣一結合, Google Talk (or SIP) 的用戶市場就會迅速擴張很多倍
這是 Skype 專屬通訊協定比較不能做到的
VoIP 若是採用標準的 SIP, 那在市場上的競爭力會比 Skype 好很多
畢竟現在 SIP 的週邊設備很多,不是 Skype 專屬的設備可以比得上的"
source:
http://blog.yam.com/candyz/archives/439526.html
comments:
For enterprises as well as governments, SIP-based softphones are obviously better:
1. on-net call is free (no inferior to Skype)
2. same rate for off-net calls (again no inferior to Skype)
3. SIP softphones are open standard versus Skype is propriatary. This means SIP
integrates more user devices (USB phones, IAD phones, Wi-Fi phones, softphones) and
encourages cross-operator roaming.
4. Gizmo (SIP-based softphone) is gaining momentum in north US. TelTel (SIP-based softphone and IM) inclusive
with Seednet has landed in Taiwan as Wagaly TelTel, a commercial VoIP service by Seednet.
5. Skype lacks manageable call logging/auditting and monitoring, which are necessary by IT policies at sectors like governments and larger enterprises.
However, Skype have gained mass and shall continue to dominate consumer markets in the coming years until SIP is capable of making
" Google 指出,未來他們的 Google Talk 將會相容於 SIP
這個影響是比較大的,且用 SIP 要跨平台互通語音也比較沒問題的
且 Gizmo Project (SIP-based)也已經跟 Google Talk 簽訂協議
在未來的版本, Gizmo Project 跟 Google Talk 的用戶彼此之間可以互通 IM 及 VoIP
如此一來,其他的 SIP 廠商應該也會陸續跟進
這樣一結合, Google Talk (or SIP) 的用戶市場就會迅速擴張很多倍
這是 Skype 專屬通訊協定比較不能做到的
VoIP 若是採用標準的 SIP, 那在市場上的競爭力會比 Skype 好很多
畢竟現在 SIP 的週邊設備很多,不是 Skype 專屬的設備可以比得上的"
source:
http://blog.yam.com/candyz/archives/439526.html
comments:
For enterprises as well as governments, SIP-based softphones are obviously better:
1. on-net call is free (no inferior to Skype)
2. same rate for off-net calls (again no inferior to Skype)
3. SIP softphones are open standard versus Skype is propriatary. This means SIP
integrates more user devices (USB phones, IAD phones, Wi-Fi phones, softphones) and
encourages cross-operator roaming.
4. Gizmo (SIP-based softphone) is gaining momentum in north US. TelTel (SIP-based softphone and IM) inclusive
with Seednet has landed in Taiwan as Wagaly TelTel, a commercial VoIP service by Seednet.
5. Skype lacks manageable call logging/auditting and monitoring, which are necessary by IT policies at sectors like governments and larger enterprises.
However, Skype have gained mass and shall continue to dominate consumer markets in the coming years until SIP is capable of making
Wednesday, August 24, 2005
Saturday, May 28, 2005
Saturday, May 21, 2005
5/28 Class
location management and routing for applications of
ad hoc / infrastructure and low/high mobility
Solutions:
infrastructure, low mobility -> Mobile IP
infrastructure, high mobility -> Cellular, Thin AP
ad hoc, low mobility -> Routing tables
ad hoc, high mobility -> ?
Lessons learned from
1. location management in Skype (Global Index, GI)
2. location management in OceanStore
Requirements of location management mechanism
1. no exhaustive search
2. bounded time to store location information at node(s)
3. bounded time to retrieve location information from node(s)
Reading Assignments:
Chap. 4 for general wireless Internet and
Section 4.3 for Mobile IP
There is a paper about Skype which you can find by scholar.google.com. This paper authored by Columbia University researcher explains their experiments on Skype and the findouts.
New products about Thin AP can be found at www.wi-fiplanet.com.
ad hoc / infrastructure and low/high mobility
Solutions:
infrastructure, low mobility -> Mobile IP
infrastructure, high mobility -> Cellular, Thin AP
ad hoc, low mobility -> Routing tables
ad hoc, high mobility -> ?
Lessons learned from
1. location management in Skype (Global Index, GI)
2. location management in OceanStore
Requirements of location management mechanism
1. no exhaustive search
2. bounded time to store location information at node(s)
3. bounded time to retrieve location information from node(s)
Reading Assignments:
Chap. 4 for general wireless Internet and
Section 4.3 for Mobile IP
There is a paper about Skype which you can find by scholar.google.com. This paper authored by Columbia University researcher explains their experiments on Skype and the findouts.
New products about Thin AP can be found at www.wi-fiplanet.com.
Saturday, May 14, 2005
Sunday, May 8, 2005
5/21 Class
Introduction to WiMax
Brief review of 2G and 3G (related report)
Reading Assignments:
Sec. 3.5, 3.6, 3.9
News update
手機功能多樣化 消費者最愛Wi-Fi與網路電話
WiMAX+VoIP 讓傳統電信業者提心吊膽
英國度假勝地啟用全市WiMAX網路
Brief review of 2G and 3G (related report)
Reading Assignments:
Sec. 3.5, 3.6, 3.9
News update
手機功能多樣化 消費者最愛Wi-Fi與網路電話
WiMAX+VoIP 讓傳統電信業者提心吊膽
英國度假勝地啟用全市WiMAX網路
Saturday, May 7, 2005
5/7 Oral Presentation
1. Conclude your team analytical reports
2. Oral presentation and defense
NTT DoCoMo Vison 2010
Grid Computing
Related report
2. Oral presentation and defense
NTT DoCoMo Vison 2010
Grid Computing
Related report
Saturday, April 16, 2005
4/16 Homework
Hit the net and go to the library to conduct research regarding the dimensions of wireless futures.
We have scheduled oral
presentations for each of you next time.
1. Compile your study at your own blog. However,
please post your titles of findings and links to your blog of search results
at the class agenda of 4/30.
2. As a backup plan, please keep your presentation materials in a storage media such as USB drive in case the radio signal is too weak to use in the classroom.
We have scheduled oral
presentations for each of you next time.
1. Compile your study at your own blog. However,
please post your titles of findings and links to your blog of search results
at the class agenda of 4/30.
2. As a backup plan, please keep your presentation materials in a storage media such as USB drive in case the radio signal is too weak to use in the classroom.
4/30 class
Use your blog to present the research you have done regarding the dimensions of wireless futures.
Second time of team meeting to conclude your team analytical reports and prepare for
the oral presentation and defense next week.
Second time of team meeting to conclude your team analytical reports and prepare for
the oral presentation and defense next week.
Friday, April 15, 2005
Thursday, April 14, 2005
4/16 Class
2 video clips
NTT DoCoMo Vison 2010
MotoCycle+WiFi=Motoman
class discussion-
DIY futures of wireless worlds and develop a personal
Scenarios in the mobile world in 2015
Form of brainstorming activities
1. Organize a 2-person team
2. Each team work on the defining dimensions sheets handed out in class and go through the 14 dimensions.
In case both of you in a team cannot reach a common ground on any of the dimensions, just average your opinions with equal weights on the disagreed dimensions.
3. Based on your team judgements on each of the dimensions, profile a personal life in a day of the mobile world in 2015. This John or Mary in your story could be you, your family, or a total stranger as you wish.
4. Oral presentation and defense: One member of the team plays the role of analyst and presents orally the opinions in each dimension. The other plays the role of creator and presents the scenario of the imaginary personal story of life in 2015.
----
If you ask the right questions, you will come up with the answers you really want.
The difficulty does not lie in thinking out the great answers but in coming up with the good questions.
Analyzing is great but works best with creations.
NTT DoCoMo Vison 2010
MotoCycle+WiFi=Motoman
class discussion-
DIY futures of wireless worlds and develop a personal
Scenarios in the mobile world in 2015
Form of brainstorming activities
1. Organize a 2-person team
2. Each team work on the defining dimensions sheets handed out in class and go through the 14 dimensions.
In case both of you in a team cannot reach a common ground on any of the dimensions, just average your opinions with equal weights on the disagreed dimensions.
3. Based on your team judgements on each of the dimensions, profile a personal life in a day of the mobile world in 2015. This John or Mary in your story could be you, your family, or a total stranger as you wish.
4. Oral presentation and defense: One member of the team plays the role of analyst and presents orally the opinions in each dimension. The other plays the role of creator and presents the scenario of the imaginary personal story of life in 2015.
----
If you ask the right questions, you will come up with the answers you really want.
The difficulty does not lie in thinking out the great answers but in coming up with the good questions.
Analyzing is great but works best with creations.
Saturday, March 26, 2005
3/26 Homework
Take a close look at the two Applets about CSMA/CA Simulations
http://wps.aw.com/aw_kurose_network_3/0,9212,1406346-,00.html
Reading Assignments:
Handout (G) Chapter 4.
(M) 2.1~2.3
(M) 2.5
(M) 2.6
http://wps.aw.com/aw_kurose_network_3/0,9212,1406346-,00.html
Reading Assignments:
Handout (G) Chapter 4.
(M) 2.1~2.3
(M) 2.5
(M) 2.6
Saturday, March 19, 2005
Saturday, March 12, 2005
3/12 Homework
1. Why is CSMA/CD not applicable in Aloha?
2. Briefly describe functions of Layer 1 to layer 4 of Network Architecture in OSI Reference Model. (Lecture 1 in Ref.)
3. List some of the major milestones of Internet history from 1960 to 2000.
Reading Assignments
Please read the following sections before we meet next time.
1. packet radio with Aloha in Lectures 13 & 14 of MIT Data Communication Networks Course
2. M1.12, M2.1~M2.5
2. Briefly describe functions of Layer 1 to layer 4 of Network Architecture in OSI Reference Model. (Lecture 1 in Ref.)
3. List some of the major milestones of Internet history from 1960 to 2000.
Reading Assignments
Please read the following sections before we meet next time.
1. packet radio with Aloha in Lectures 13 & 14 of MIT Data Communication Networks Course
2. M1.12, M2.1~M2.5
Saturday, March 5, 2005
3/12 Class Agenda
Syllabus 5. OSI Model and TCP/IP Protocol Suite
(Textbook) 1.9 Computer Networks
1.10 Computer Network Software
1.11 OSI Reference Model
1.12 IEEE 802 Standard
packet radio with Aloha in Lectures 13 & 14 of MIT Data Communication Networks Course
(Textbook) 1.9 Computer Networks
1.10 Computer Network Software
1.11 OSI Reference Model
1.12 IEEE 802 Standard
packet radio with Aloha in Lectures 13 & 14 of MIT Data Communication Networks Course
3/5 Homework
3/5 Class agenda
Syllabus 3. A Perspective of Wired & Wireless Broadband Networks
LAN
802.3,
Point to Point WAN
ADSL, Cable Modem, T Lines, SONET,
Switched WAN
Frame Relay, ATM, FTTx,
WLAN
802.11 a/b/g, Wireless Mesh,
Syllabus 6. Underlying Technology at Physical Layers
Introduction to Spread Spectrum (J. Meel)
and applications
LAN
802.3,
Point to Point WAN
ADSL, Cable Modem, T Lines, SONET,
Switched WAN
Frame Relay, ATM, FTTx,
WLAN
802.11 a/b/g, Wireless Mesh,
Syllabus 6. Underlying Technology at Physical Layers
Introduction to Spread Spectrum (J. Meel)
and applications
Sunday, February 27, 2005
請開放妳/你的 Blog允許他人張貼Comment的權限
否者, 我們將會看到以下文字
New comments have been disabled for this post by a blog administrator
而且老師無法給你意見. 如果你沒有看到老師評語, 可能就是因為這個緣故無線寬頻作業一 By: G9376603 宋懷遠
無線寬頻作業一 By: G9376603 宋懷遠
Skype business model
PChome Online表示，目前該軟體所提供的網路電話語音服務是電腦端對電腦端通話的模式，目前是免費下載，這代表講電話免錢的時代已經到來，未來將發展其他模 式的撥打方式，如從電腦端撥到市內電話及手機。當跳脫PCto PC模式時，就需要收取費用。該公司將於今年下半年推出上述服務，並以「SkypeOut」為名稱，透過SkypeOut撥打國際電話，費用是傳統電話的 十分之一。
Skype是一款語音通訊（VoIP）軟體，因此在聲音的傳遞技術上也特別加強，其主要特色如下：
音質超優，傳遞不延遲：以往的網路語音聊天，最被人詬病的就是音質差又會延遲，因此Skype特別加強語音壓縮技術，其音質比一般市話更佳，甚至可媲美 CD音質，而且聲音傳遞也不延遲。
不怕防火牆阻擋：多數的 VoIP軟體碰到了防火牆或是 NAT（網路位置傳譯）都會被擋下而無法通話，但有許多人的網路都還是架設在防火牆或 NAT之內的，而Skype利用獨特的點對點（Peer-to-peer）傳輸技術，可以避開防火牆阻擋，順利跟對方連上線。
通話不怕被竊聽：如果電話中聊到重要內容，最怕被人竊聽，Skype在通話時兩方的語音資訊都是經過加密後再行送出，所以安全性很高，不必擔心電話內容被竊聽。
可讓多人同時線上交談：Skype提供語音聊天室，最多可以支援5個人同時線上聊天，這樣就可以找一群朋友同時來聊天，或者是直接開線上會議。
另外Skype也可以傳送文字簡訊以及上傳個人照片，還能把好友名單中的暱稱修改成比較好認的名字，使用上相當方便。
為 了推廣這套軟體，原創公司也積極在全球尋找合作伙伴，PChome Online是原創公司在全球首家合作的網站，負責台灣地區的推廣。目前Skype介面修改成繁體中文後，取名為PChome-Skype，未來 PChome Online會陸續提供更多的加值服務，包括用PChome-Skype撥打到電話與手機的功能。
Source:Pchome
Skype business model
PChome Online表示，目前該軟體所提供的網路電話語音服務是電腦端對電腦端通話的模式，目前是免費下載，這代表講電話免錢的時代已經到來，未來將發展其他模 式的撥打方式，如從電腦端撥到市內電話及手機。當跳脫PCto PC模式時，就需要收取費用。該公司將於今年下半年推出上述服務，並以「SkypeOut」為名稱，透過SkypeOut撥打國際電話，費用是傳統電話的 十分之一。
Skype是一款語音通訊（VoIP）軟體，因此在聲音的傳遞技術上也特別加強，其主要特色如下：
音質超優，傳遞不延遲：以往的網路語音聊天，最被人詬病的就是音質差又會延遲，因此Skype特別加強語音壓縮技術，其音質比一般市話更佳，甚至可媲美 CD音質，而且聲音傳遞也不延遲。
不怕防火牆阻擋：多數的 VoIP軟體碰到了防火牆或是 NAT（網路位置傳譯）都會被擋下而無法通話，但有許多人的網路都還是架設在防火牆或 NAT之內的，而Skype利用獨特的點對點（Peer-to-peer）傳輸技術，可以避開防火牆阻擋，順利跟對方連上線。
通話不怕被竊聽：如果電話中聊到重要內容，最怕被人竊聽，Skype在通話時兩方的語音資訊都是經過加密後再行送出，所以安全性很高，不必擔心電話內容被竊聽。
可讓多人同時線上交談：Skype提供語音聊天室，最多可以支援5個人同時線上聊天，這樣就可以找一群朋友同時來聊天，或者是直接開線上會議。
另外Skype也可以傳送文字簡訊以及上傳個人照片，還能把好友名單中的暱稱修改成比較好認的名字，使用上相當方便。
為 了推廣這套軟體，原創公司也積極在全球尋找合作伙伴，PChome Online是原創公司在全球首家合作的網站，負責台灣地區的推廣。目前Skype介面修改成繁體中文後，取名為PChome-Skype，未來 PChome Online會陸續提供更多的加值服務，包括用PChome-Skype撥打到電話與手機的功能。
Source:Pchome
無線寬頻作業一 By: G9376603 宋懷遠
無線寬頻作業一 By: G9376603 宋懷遠
Business model Wi-Fi vs GSM
1. Wi-Fi can not support a fast roaming between cells with car speed while GSM user can be supported up to 180 Km/hr.
2. Wi-Fi use 2.4GHz for 802.11b while GSM use 900 / 1800 /1900 MHz.
The modulation technology is CDMA for Wi-Fi and TDMA+FDMA for GSM
3. GSM data connection speed is 9.6kbps while WI-Fi is 11Mbps.
GSM can be upgraded to GPRS speed fort around 100kbps.
4. GSM Cell’s coverage range is much larger than Wi-Fi,can be up to several kilo meters while the WALN can only support up to 100 meters.
5. Can you live without GSM now ?
6. The Wi-Fi charging rate is cheaper than GSM or GPRS.
In Mainland China , China Mobile provide the GPRS service with a fixed rate
of 200人民幣 per month.
In Taiwan , the carrier provide charge the rate by bytes which is much more expensive than in Mainland China.
7. Wi-Fi can support VOIP which is a great impact to GSM voice business.
Some GSM handset will be installed WLAN which allow the user to use VOIP.
Business model Wi-Fi vs GSM
1. Wi-Fi can not support a fast roaming between cells with car speed while GSM user can be supported up to 180 Km/hr.
2. Wi-Fi use 2.4GHz for 802.11b while GSM use 900 / 1800 /1900 MHz.
The modulation technology is CDMA for Wi-Fi and TDMA+FDMA for GSM
3. GSM data connection speed is 9.6kbps while WI-Fi is 11Mbps.
GSM can be upgraded to GPRS speed fort around 100kbps.
4. GSM Cell’s coverage range is much larger than Wi-Fi,can be up to several kilo meters while the WALN can only support up to 100 meters.
5. Can you live without GSM now ?
6. The Wi-Fi charging rate is cheaper than GSM or GPRS.
In Mainland China , China Mobile provide the GPRS service with a fixed rate
of 200人民幣 per month.
In Taiwan , the carrier provide charge the rate by bytes which is much more expensive than in Mainland China.
7. Wi-Fi can support VOIP which is a great impact to GSM voice business.
Some GSM handset will be installed WLAN which allow the user to use VOIP.
Saturday, February 26, 2005
2/26 Homework
1. What drives wireless broadband and makes it fly?
2. What are the impacts and implications of emergence of digital camera, IP Phone, digital TV, & digital broadcast?
3. Why all IP networks? Please explain briefly.
Reading Assignments
1. Multimedia Wireless Networks: 3 demo from Phillips and 4 articles from WiFiplanet
2. Please read the following sections before we meet next time.
M1.6~ M1.8, M1.12, F3.1~F3.3, G1
2. What are the impacts and implications of emergence of digital camera, IP Phone, digital TV, & digital broadcast?
3. Why all IP networks? Please explain briefly.
Reading Assignments
1. Multimedia Wireless Networks: 3 demo from Phillips and 4 articles from WiFiplanet
2. Please read the following sections before we meet next time.
M1.6~ M1.8, M1.12, F3.1~F3.3, G1
Friday, February 25, 2005
The State of Handhelds & VoIP
SmartPhoneToday.
Issues: Should the user be aware of the switch from Wi-Fi to GSM or vice versa?
Observation: Motorola and Skype work together.
請將你的作業寫在你的 blog
請將你的作業寫在你的 blog, 然後到
Homework 1 的Comment 登錄作業blog網址就可以了.
請勿將作業直接寫在 comment
可以參考陳一德, 謝鴻儒同學Homework 1 的方式.
另外, 謝鴻儒同學的 Homework 1 網址可以直接點選,
這是很好的做法, 更有利於前往閱讀.
Homework 1 的Comment 登錄作業blog網址就可以了.
請勿將作業直接寫在 comment
可以參考陳一德, 謝鴻儒同學Homework 1 的方式.
另外, 謝鴻儒同學的 Homework 1 網址可以直接點選,
這是很好的做法, 更有利於前往閱讀.
Saturday, February 19, 2005
2/19 Homework
1. business model of Wi-Fi City compared to GSM operation models.
2. business model of Skype
Due next Saturday 11:00 a.m.
Please write your homework at your own blog. Then post your blog URL here using
Post a comment so that your submission can be timemarked and your classmates can take a look of your work.
2. business model of Skype
Due next Saturday 11:00 a.m.
Please write your homework at your own blog. Then post your blog URL here using
Post a comment so that your submission can be timemarked and your classmates can take a look of your work.
25 million downloads of Firefox
On February 15th, exactly 99 days after it was released, Firefox 1.0 smashed through the 25 million download milestone.
http://www.spreadfirefox.com/
http://www.spreadfirefox.com/
2/19 Reading Assignments and topics for 2/26
Please read the following sections before we meet next time.
M1.1~ M1.8, M1.12, F3.1~F3.3, G1
For meeting Agenda of 2/26, please refer to the syllabus.
3. A Perspective of Wired & Wireless Broadband Networks
M1.1~ M1.8, M1.12, F3.1~F3.3, G1
For meeting Agenda of 2/26, please refer to the syllabus.
3. A Perspective of Wired & Wireless Broadband Networks
Reading Assignments
Textbooks:
(M) C. Siva Ram Murthy, B. S. Manoj Ad Hoc Wireless Networks: Architectures and Protocols Prentice Hall, 2004. 全華圖書代理進口
Reference
(G) Aura Ganz, Zvi Ganz, Kitti Wongthavarawat Multimedia Wireless Networks, Prentice Hall, 2004.
Behrouz Forouzan TCP/IP Protocol Suite McGraw-Hill, 全華圖書代理進口, 2003.
(F) Behrouz Forouzan (陳中和、吳秀峰翻譯) TCP/IP 協定精要 (TCP/IP Protocol Suite, 2/e) 2004
(W) Wireless Business News Updates: http://www.wifiplanet.com
使用說明
M2.1 表示 Murthy的書第2.1節
學期課程
1. Trends of Internet Applications and Business models
Peer to peer, Overlay Network, Google, VoIP, Skype, All IP Network, Wi-Fi, WiMax, M-Commerce
Reading Assignments: handout at Wireless Blog
2. Multimedia Applications
Video & Audio Streaming, Peer-to-Peer, Digital Money Transactions, Entertainment, File & Picture Sharing, Wireless Gaming, Voice and Telephony, Location Based Services, Telemedicine, Telematics, Car-to-Car Wireless Communications
Reading Assignments: G1
3. A Perspective of Wired & Wireless Broadband Networks
802.3, ADSL, Cable Modem, T Lines, SONET, Frame Relay, ATM, FTTx,
4. Underlying Technology at Physical Layers
5. OSI Model and TCP/IP Protocol Suite
Layers in the OSI model, TCP/IP protocol suite, addressing
Reading Assignments: M1.9~ M1.12, F2.1~F2.3, F2.5
6. QoS Fundamentals
Throughtput, Delay, Delay Variations, Loss or error Rate
7. Media Access Control
FDMA/TDMA /CDMA, 802.11, 802.16, 802.15
Reading Assignments: M1.12, M2.1 ~ M2.3, M2.5, M3.9,
8. Wireless WAN,
GPRS, UMTS, cdma2000, WAP
Reading Assignments: M3.1~ M3.6, M4.5
9. Internet Protocol
Fragmentation, Options, Checksum, IP Package
Reading Assignments: M4.1 ~ M 4.3, F8.1~F8.2
10. Transmission Control Protocol
TCP Services, Flow Control, Error Control, Congestion Control, Segment, Connection, TCP Operation, TCP Package
Reading Assignments: M4.4, F12.1~F12.14
11. Routing Protocols
RIP, OSPF, and BGP
12. Mobile IP
Reading Assignments: M4.1~ M4.3, F27.1~F27.7
13. TCP in Wireless Domains
14. Ad Hoc Wireless Networks
Issues, MAC & Routing
Reading Assignments: M5.1~M5.3, M6.1~M6.9, M7.1~M7.9
15. Wireless Sensor Neiworks
16. Internet Security
Public Key Infrastructure, Digital Signature, SSL, Firewall, NAT, Watermark
張老師簡歷
現職
- 中原大學電子工程學系研究所專
經歷
- 美國伊利諾大學香檳校區電機與電腦工程系助理教授(3年)
- 中原大學電子工程學系研究所專
- IBM 亞太區電子商務顧問 (3年)
- 蕃薯藤(Yam.com)數位科技協理 (5年)
Features of Skype
1. peer to peer, no server required, therefore, no operation cost like cellular communications
2. overlay, not relying on existing Internet protocols beyond Layer 4, resilient to malfunctions of Internet services
3. scalable, using supernodes among every 500 nodes, adaptive to constant configuration changes
4. high quality codec for crystal voice
5. strong penetration to NAT and firewalls
6. free for now and maybe forever for on-net calls
7. implementation of packet voice
8. consumes reasonable bandwidth, consumes significant CPU
9 . teleconference, voice communications for 5 parties at most
10. millions people online all the times, number keep rising.
11. provide presence like messengers, great feature compared to old phones
2. overlay, not relying on existing Internet protocols beyond Layer 4, resilient to malfunctions of Internet services
3. scalable, using supernodes among every 500 nodes, adaptive to constant configuration changes
4. high quality codec for crystal voice
5. strong penetration to NAT and firewalls
6. free for now and maybe forever for on-net calls
7. implementation of packet voice
8. consumes reasonable bandwidth, consumes significant CPU
9 . teleconference, voice communications for 5 parties at most
10. millions people online all the times, number keep rising.
11. provide presence like messengers, great feature compared to old phones
Friday, February 18, 2005
台北無線寬頻 802.16 初步架構與預算評估
Objective:
1. To overcome HFC's bottleneck and provide best-effort broadband wireless coverage
in the Metropolitan Taipei area.
2. To make use of the advanced technology and provide the scalability for future growth of the infrastructure
Basic:
A 802.16 base station can cover 40 km-square.
Therefore, if there are no obstacles such as hills, 7 base stations should be
enough to cover metropolitan Taipei.
Bandwidth:
Each station can support 72 Mbps. So the overall thoughput is as high as 504 Mbps,
equivalently, 330 T1 lines.
Benefits:
It can overcome HFC's uplink bottleneck (at 500 kbps).
802.16 can use the unlicensed 5.8 GHz (ISM band). But I have to check it this frequency is also lisense free in Taiwan.
Scalability:
When more subscribers get online, each base station can gracefully grow up to sixfold, just like the honeycomb, by just adding more
flat panel antennas and tranceivers. So the throughput grow to 3024 Mbps or 1980 T1 lines.
If further bandwidth is needed in the distant future, we can add more base stations by adding more microwave towers.
Risk:
The fundamental question is whether 7 base stations is enough. Because there are obstacles,
I don't think 7 can make it. We need some kind of terrain survey to pin down this number.
Budget:
Since Taipei is basically a basin, I would make a wild guess that 20 should suffice.
If this is a good guess, the budget to get the euipment alone is 80M TWD. Of course, we need to consider
labor cost, tower setup, among other things. So the cost would be around 100 M TWD.
Disclaimer:
I have to stress again that there are variables such as terrain features and, therefore, the report is only preliminary.
ps.
台北市十二行政區面積一覽表
區別 各行政區面積
(平方公里)
松山區 9.2878
信義區 11.2077
大安區 11.3614
中山區 13.6821
中正區 7.6071
大同區 5.6815
萬華區 8.8522
文山區 31.5090
南港區 21.8424
內湖區 31.5787
士林區 62.3682
北投區 56.8216
台北市總計面積:271.7997平方公里
1. To overcome HFC's bottleneck and provide best-effort broadband wireless coverage
in the Metropolitan Taipei area.
2. To make use of the advanced technology and provide the scalability for future growth of the infrastructure
Basic:
A 802.16 base station can cover 40 km-square.
Therefore, if there are no obstacles such as hills, 7 base stations should be
enough to cover metropolitan Taipei.
Bandwidth:
Each station can support 72 Mbps. So the overall thoughput is as high as 504 Mbps,
equivalently, 330 T1 lines.
Benefits:
It can overcome HFC's uplink bottleneck (at 500 kbps).
802.16 can use the unlicensed 5.8 GHz (ISM band). But I have to check it this frequency is also lisense free in Taiwan.
Scalability:
When more subscribers get online, each base station can gracefully grow up to sixfold, just like the honeycomb, by just adding more
flat panel antennas and tranceivers. So the throughput grow to 3024 Mbps or 1980 T1 lines.
If further bandwidth is needed in the distant future, we can add more base stations by adding more microwave towers.
Risk:
The fundamental question is whether 7 base stations is enough. Because there are obstacles,
I don't think 7 can make it. We need some kind of terrain survey to pin down this number.
Budget:
Since Taipei is basically a basin, I would make a wild guess that 20 should suffice.
If this is a good guess, the budget to get the euipment alone is 80M TWD. Of course, we need to consider
labor cost, tower setup, among other things. So the cost would be around 100 M TWD.
Disclaimer:
I have to stress again that there are variables such as terrain features and, therefore, the report is only preliminary.
ps.
台北市十二行政區面積一覽表
區別 各行政區面積
(平方公里)
松山區 9.2878
信義區 11.2077
大安區 11.3614
中山區 13.6821
中正區 7.6071
大同區 5.6815
萬華區 8.8522
文山區 31.5090
南港區 21.8424
內湖區 31.5787
士林區 62.3682
北投區 56.8216
台北市總計面積:271.7997平方公里
國外球場Wi-Fi應用
我整理了國外的應用供大家繼續思考與發揮.
國外球場Wi-Fi應用
中場check email, QQ
查球員照片,個人出賽資料
觀眾以無線寬頻照相傳輸自拍或精采畫面,使用照相PDA
包廂無線上網
精采鏡頭立即重播/慢動作 (使用Service Discovery 技術)
電台電視網路轉播
買點心,線上刷卡,點心直接端到位置上
媒體中心供記者發稿
戶外教學
今日討論
對戰軟體
球迷化妝票選
票選MVP+抽獎
球迷看完球賽之後填寫問券與抽獎
球票預售
PS:
新莊球場有 3-4 VIP rooms
國外球場Wi-Fi應用
中場check email, QQ
查球員照片,個人出賽資料
觀眾以無線寬頻照相傳輸自拍或精采畫面,使用照相PDA
包廂無線上網
精采鏡頭立即重播/慢動作 (使用Service Discovery 技術)
電台電視網路轉播
買點心,線上刷卡,點心直接端到位置上
媒體中心供記者發稿
戶外教學
今日討論
對戰軟體
球迷化妝票選
票選MVP+抽獎
球迷看完球賽之後填寫問券與抽獎
球票預售
PS:
新莊球場有 3-4 VIP rooms
mobile Internet
cellular handsets:
PHY: All digital
Signaling:
SMS, Short Message Service, up to 160 bytes
SMS, EMS use control channels while MMS use regular channels shared by data and voice.
Media Access: TDMA for multiplexing, using one of 8 time slots repeatedly
GSM, Circuit Switching, 9.6 (*2), 12.4(*2, HSCSD)
GPRS, General Packet Radio Services, Packet Switching, 9.05 kbps/13.4 kbps (*1,2,3,4)
WAP, content bearer protocol, certificate, cookies
WML, wireless markup language (or HTML-C as in i-Mode, XHTML)
MMS, Multimedia Messaging Service
Tariff
GPRS vs. GSM
pricing based on data volume or air time
Business Issues:
Will MMS make a hit?-
Function Integration
1. Fundamental questions: Do people like Swiss Army Knife? Video phone,
Recorder-TV,
British Royal Navy Sea Harrier (http://www.targetlock.org.uk/seaharrier/)
Format convergence products
2. DVD-Combo, DVD/VCD/CD
3. Card Reader, SD/SMC/MMC/CF
Advanced Applications
Positioning, LBS, GPS required for high precision
Security features
WIM: A Wireless Identity Module (WIM) can contain
both trusted and client certificates, private keys
and algorithms needed for WTLS handshaking,
encryption/decryption and signature generation.
The WIM module can be placed on a SIM card
and is then referred to as a SWIM card.
Social Issues:
base stations in communities
Near Fields
3G Technology Trends
Spread Spectrum: CDMA vs. TDMA (so called 3G)
MMS business issues
1. archiecture of MMS delivery systems
2. comparison to Internet
Principles of SS
1. from FDMA, TDMA to CDMA
2. related applications: IS-95, W-CDMA, 802.11
authentication and billing of wlan with SIM card
1. authentication
2. billing
3. coverage of both 802.11 & GPRS/3G
4. roaming across APs and WISPs
5. user base
PHY: All digital
Signaling:
SMS, Short Message Service, up to 160 bytes
SMS, EMS use control channels while MMS use regular channels shared by data and voice.
Media Access: TDMA for multiplexing, using one of 8 time slots repeatedly
GSM, Circuit Switching, 9.6 (*2), 12.4(*2, HSCSD)
GPRS, General Packet Radio Services, Packet Switching, 9.05 kbps/13.4 kbps (*1,2,3,4)
WAP, content bearer protocol, certificate, cookies
WML, wireless markup language (or HTML-C as in i-Mode, XHTML)
MMS, Multimedia Messaging Service
Tariff
GPRS vs. GSM
pricing based on data volume or air time
Business Issues:
Will MMS make a hit?-
Function Integration
1. Fundamental questions: Do people like Swiss Army Knife? Video phone,
Recorder-TV,
British Royal Navy Sea Harrier (http://www.targetlock.org.uk/seaharrier/)
Format convergence products
2. DVD-Combo, DVD/VCD/CD
3. Card Reader, SD/SMC/MMC/CF
Advanced Applications
Positioning, LBS, GPS required for high precision
Security features
WIM: A Wireless Identity Module (WIM) can contain
both trusted and client certificates, private keys
and algorithms needed for WTLS handshaking,
encryption/decryption and signature generation.
The WIM module can be placed on a SIM card
and is then referred to as a SWIM card.
Social Issues:
base stations in communities
Near Fields
3G Technology Trends
Spread Spectrum: CDMA vs. TDMA (so called 3G)
MMS business issues
1. archiecture of MMS delivery systems
2. comparison to Internet
Principles of SS
1. from FDMA, TDMA to CDMA
2. related applications: IS-95, W-CDMA, 802.11
authentication and billing of wlan with SIM card
1. authentication
2. billing
3. coverage of both 802.11 & GPRS/3G
4. roaming across APs and WISPs
5. user base
Ask the right questions. Or simply ask questions no matter what
1. What drives wireless broadband and makes it fly?
2. Explain paradigm shift: from server-centric to peer to peer, from infrastructure to ad hoc
3. What are the impacts of emergence of digital camera, IP Phone, digital TV, & digital broadcast?
4. Why all IP networks?
5. Comment on the opinion of control transfer from teleco to datacom.
2. Explain paradigm shift: from server-centric to peer to peer, from infrastructure to ad hoc
3. What are the impacts of emergence of digital camera, IP Phone, digital TV, & digital broadcast?
4. Why all IP networks?
5. Comment on the opinion of control transfer from teleco to datacom.
Syllabus: Broadband Wireless Networking Architectures and Applications
Time: 1:10 p.m. - 4:00 p.m. Saturday
Place:
Grading Policy: Participation (Presence, Challenging and Answers, & 2 Oral Presentations) 60%, Homework 40%,
Instructor: Associate Professor Yao-Jen Chang
Email:yjchang at cycu dot edu dot tw
Textbooks:
C. Siva Ram Murthy, B. S. Manoj Ad Hoc Wireless Networks: Architectures and Protocols Prentice Hall, 2004. 全華圖書代理進口
Reference
Aura Ganz, Zvi Ganz, Kitti Wongthavarawat Multimedia Wireless Networks, Prentice Hall, 2004.
Behrouz Forouzan TCP/IP Protocol Suite McGraw-Hill, 全華圖書代理進口, 2003.
Behrouz Forouzan (陳中和、吳秀峰翻譯) TCP/IP 協定精要 (TCP/IP Protocol Suite, 2/e) 2004
Wireless Business News Updates: http://www.wifiplanet.com
Tips for you to do better performance
1. 繳交作業：
文字式作業原則上使用 Blog: 請至 http://www.blogger.com 申請, 請以你的學號 (s/g開頭) 申請免費帳號。主旨欄請用以下格式 "無線寬頻作業一
" 以加速助教登錄作業成績。
2. 發表學習心得：以Blog (部落格) 發表學習心得，此部份將對Participation成績有益
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