Tài liệu 3G CDMA2000 Wireless System Engineering pptx

[...]... CHAPTER 1 Introduction to 3G CDMA 1.1 Third Generation Systems While there are several wireless standards and systems that qualify as third generation (3G) systems, this book specifically deals with the IS-2000 implementation of 3G In the mid-1990s, the International Telecommunication Union (ITU) initiated an effort to develop a framework of standards and systems that will provide wireless and ubiquitous... for both forward and reverse links (asymmetric data rates) [1] Some standards and systems such as Universal Mobile Telephone System (UMTS) are implemented in the new 3G spectrum (e.g., in Europe) While other standards and systems such as IS-2000 can introduce 3G services in spectrums already used by second generation (2G) systems (e.g., in North America) The latter case takes into account those investments... of 3G It is useful to review the performance requirements of a 3G wireless system, which are as follows (for both packet-switched and circuit-switched data): • • • A minimum data rate of 144 Kbps in the vehicular environment; A minimum data rate of 384 Kbps in the pedestrian environment; A minimum data rate of 2 Mbps in the fixed indoor and picocell environment In addition, in all environments the system. .. in wireless communications that will influence the future of this dynamic field One phenomenon driving these changes has been the integration of wireless communication devices in people’s lives While the 1990s were the years when wireless voice telephony became popular, the 2000s should be the time when wireless data applications are truly un-tethered from homes and offices As more people adopt wireless. .. Mobile Communication Systems, Norwood, MA: Artech House, 2000, p 2 The Economist, “Mobile Telecoms: Time for plan B,” Economist, September 28–October 4, 2002, pp 57–58 TIA/EIA/IS-2000.2-A, Physical Layer Standard for cdma2000 Spread Spectrum Systems, Telecommunications Industry Association, March 2000 TIA/EIA/IS-2000.3-A, Medium Access Control (MAC) Standard for cdma2000 Spread Spectrum Systems, Telecommunications... Standard for cdma2000 Spread Spectrum Systems, Telecommunications Industry Association, March 2000 TIA/EIA/IS-2000.5-A, Upper Layer (Layer 3) Signaling Standard for cdma2000 Spread Spectrum Systems, Telecommunications Industry Association, March 2000 Forouzan, B A., Data Communications and Networking, New York: McGraw-Hill, 2004 ITU-T Recommendation X.210, Information Technology–Open Systems Interconnection–Basic... codes) in detail and assumes that the reader is familiar with basic material such as those found in CDMA RF System Engineering (Samuel Yang, Artech House, 1998) Furthermore, this book assumes that the reader is familiar with the layered frameworks of the Internet Model and OSI Model In 3G, the system requires the full participation of not only the physical layer but also medium access control, link... applications effected by these devices, the demand on wireless networks will continue to grow Although code division multiple access (CDMA) has become an integral part of the ensemble of third generation (3G) standards, many wireless network operators have found the implementation of IS-2000 affords a good balance between cost and performance of providing 3G services, especially if an operator evolves its... building the foundation of the structure of an IS-2000 system, the book proceeds to the systems aspects of IS-2000 in Chapters 7 to 12 Since IS-2000 contains power control and handoff functions that are superior to those in IS-95-A, Chapters 7 and 8 describe in detail power control and handoff functionalities, respectively Chapter 9 then proceeds to cover system performance and describes those features adopted... in the initial deployment of 3G [3] In addition, as will be seen in later chapters of this book, IS-2000 is backward compatible with existing 2G IS-95 systems This backward compatibility gives IS-2000 two important advantages First, IS-2000 is able to support the reuse of existing IS-95 infrastructure equipment and hence requires only incremental investment to provide 3G services Second, because IS-2000 . Data Yang, Samuel C. 3G CDMA2000 wireless system engineering. —(Artech House mobile communications library) 1. Wireless communication systems. 2. Code division. 1 Introduction to 3G CDMA 1.1 Third Generation Systems While there are several wireless standards and systems that qualify as third genera - tion (3G) systems,