大三專題說明會

12/30 連假日停課ㄧ次

Recent Trends

ADSL -> FTTH

• Point-Topic：光纖降價有取代Cable modem之勢 (2006/12/14)
  

802.11 a/b/g -> 802.11n
3G -> HSDPA (3.5G) -> 4G, WiMax
CD -> Paid Music Download

TV-> IPTV, DTV, DVB-H
Wireline Phone -> VoIP or VoWiFi
Mobile Phone->VoIP over HSDPA

Spread Spectrum -> OFDM -> OFDM + MIMO

12-23-2006 Class

Student Presentation (schedule)

12/23

• Hanks(Social Use of Digital Imagery),
• 徐欣佑(Social Capital),
  
• 簡里安(Push!Music)
• Tony (Location and Photos),

Service model: 台北市政府的VOIP公務服務系統

Web 2.0 BBS: Gaaan

Web 2.0 Personal Portal:

• start.com
• netvibes.com
• google.com/ig

Wi-Fi Community Network and Business Model <fon>


預告
12/30 連假日停課ㄧ次

Homework 12/16/2006

For housing services, compare the three websites
http://www.housingmaps.com
http://www.urmap.com.tw/asp/kijiji/
http://www.7house.com.tw

List the differences in the user interface design and usability. Make comments
by your use experiences.

Web 2.0 for NPO (Nonprofit organization)

Web 2.0 is absolutely a trend that NPO should pursue.

I have a study as posted in the following.

http://minstral.blogspot.com/2006/10/web-20.html

Web 2.0 also has some problems that people start to notice. First of all, sharing is limited and diverse.
Various tools exist: Blogs, Flickr, BT, …. It is not uncommon

that one has to combine several services in order to make things done.

For example, save the documents in Google Docs, store the photos on Clickr,

and write blogs on SixApart.
Second, existing Web 2.0 service providers give limited storage and functions.

There is no roadmap about the new features people

are looking for. Change of the platform is not straightforward, either. For example,

people better not decide to move from Blogger to Xuite, because there is no import

function.

Nonetheless, I think one can still leverage the existing nice services such as Flickr, Google Docs, and Blogger that

are already popular. These services seem generic and have uses in many ways.

As to the mission critical applications that NPO want to build, Web 2.0 essentials can be built into these systems

from scratch. For example, we can do AJAX programming to make the GUI more usable and friendly.

We can also let users contribute and share their data, and even enable them to mash services up, just to name a few.

A far dream may be a Web 2.0 platform that NPO can host their mission critical applications.

In that case, all they need is learn how to use the systems without the bothering IT maintenance problems.

Web 2.0

Web 2.0

• WYSWYG (What you see is what you get.)
• Personalization
• Mashup
• Sharing
• Feedback

If Web 1.0 is read only, then Web 2.0 is Read-Write.

Web 1.0 is for the user.
Web 2.0 is for the user and by the user.
Web 3.0 is for the user, by the user, and of the user.

examples:

Wikipedia

http://www.google.com/ig

Google News

Software as a Service: Wriely

Panorama Explorer

Mashup examples:

• Real time satellite tracking
• HousingMaps: a mashup of Craigslist and Google Maps
  
• Map your own photes.
  
• More applications of Google Maps

References:

What is Web 2.0? By Andy Budd of Clearleft Ltd

What Is Web 2.0 by Tim O'Reilly

Unlicensed Mobile Access

UMA Technology

• seamless handoff from WiFi to cellular networks,
• converging the fixed and mobile worlds
• under the control and billing of the mobile operator

UMA Architecture

• a new network element (the UMA Network Controller, UNC)
• UNC interfaces into the core network via existing 3GPP specified A/Gb interfaces.
• protocols for the secure transport of GSM/GPRS signalling and user plane traffic over IP.

SIP
in contrast, uses the Internet for routing

Issues

• WLAN couldn’t really support it due to the hand-off issues among APs.

Vendors

• Extricom selling 8 and 24-port WLAN switches
• client on the network associates to the switch, not the radio/AP
• No de-association or re-association

UMA in the office