This book describes the technologies involved in all aspects of a large networking system and how the various devices can interact and communicate with each other. Using a bottom up approach the authors demonstrate how it is feasible, for instance, for a cellular device user to communicate, via the all-purpose TCP/IP protocols, with a wireless notebook computer user, traversing all the way through a base station in a cellular wireless network (e.g., GSM, CDMA), a public switched network (PSTN), the Internet, an intranet, a local area network (LAN), and a wireless LAN access point. The information bits, in travelling through this long path, are processed by numerous disparate communication technologies. The authors also describe the technologies involved in infrastructure less wireless networks.With the same number of channels per cell, the capacity hotspot problems can be resolved. ... ranging from macrocell for rural coverage to microcells for higher capacity in urban areas as illustrated in Figure 5.4 Finally, as the cells are split into smaller and smaller ... Figure 5.5 Illustration of spectrum allocation for 3G service.
|Title||:||Wireless Internet and Mobile Computing|
|Author||:||Yu-Kwong Ricky Kwok, Vincent K.N. Lau|
|Publisher||:||Wiley-IEEE Press - 2007-09-04|