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基本説明
Provides coverage of 4G mobile - the newest development by ITU.
Full Description
Broadband Wireless Mobile (3G and 4G) will be the next key developments in wireless communications. Immense interest has been fuelled by large demand for high frequency utilisation as well as a large number of users requiring simultaneous multidimensional high data rate access for the applications of wireless mobile internet and e-commerce. Broadband wireless mobile extends the corporate LAN to common areas such as meeting rooms and enables in-building public wireless hotspots such as airport lounges to provide wireless portable computer connectivity. People will be able to access information as if they were at their desk and will be able to communicate reliably and access securely the information most important to them, such as email, corporate data and the Internet. The 3G/4G systems will use a new network architecture (eg All-IP NET) to deliver broadband services in a more generic configuration to mobile customers and supports multidimensional services and emerging interactive multimedia communications. The world of telecommunications will continue to migrate toward wireless technologies and will ultimately provide users with mobile access to all types of media and information in a variety of forms including media phones and portable computers.
* Provides coverage of 4G mobile - the newest development by ITU (International telecommunication Union)
* Covers range of emerging wireless applications including WAP and iMode
* Provides a world perspective on the topic as the authors are from USA, Europe and Japan
An essential reference for engineers and researchers in the field of wireless communications systems (and electrical engineering), network planners and operators, as well as a valuable reference for students and management, marketing, sales or investor personnel in the area of wireless communications.
Contents
1. Summary and Introduction.
Introduction.
Network Architecture.
Protocol Stack.
Compact Open Core.
Conclusions.
2. UMTS Air Interface.
Introduction.
UMTS Air Interface.
CDMA2000 Air Interface.
Compatibility Issues.
Enhancing 3G Capabilities.
3. Network Architecture.
Introduction.
Generic Network Model.
Network Architecture.
UMTS Terrestrial Radio Access Network.
Network Access Security.
4. Emerging Wireless Applications and Protocols.
Introduction.
Wireless Application Protocol (WAP).
i-mode.
Other Wireless Mobile Internet Application Technologies.
Conclusions.
5. Inititatives in 4G Mobile Design.
Introduction -
Who Needs 4G? What is 4G?
Microwave Propogation.
Adaptive Antennas.
Multiple Access Schemes.
CDMA Dynamic Cell Configuration.
CDMA Cellular Packet Communications.
Network Architecture and Teletraffic Evaluation.
TCP over 4G.
Decoding Technique in Mobile Multimedia Communications.
6. Conclusions.
References.
Index.
