[share_ebook] IP For 3g: Networking Technologies For Mobile Communications

A comprehensive discussion of multiple access protocols for cellular systems and the consideration of the specific constraints and capabilities of second and third generation systems regarding the multiple access protocols.Beginning by introducing the cellular concept and discussing second and third generation cellular communication systems, including the evolution from these systems to IP-based systems, the authors then identify the requirements for and problems related to multiple access. In accordance with ETSI and 3GPP standards, a split is made into basic multiple access schemes such as CDMA, TDMA and FDMA and multiple access protocols. The pros and cons of CDMA and TDMA for third generation systems are discussed as well as medium access in GSM, GPRS and UMTS, essentially based on R-ALOHA protocols in all these systems. Data access delay and voice dropping performance is assessed and the different UTRA modes are considered.

Mobile Commerce is an emerging phenomenon based on quickly growing applications of wireless technologies and mobile communications. Mobile communication is becoming as essential need for individuals and businesses in their daily actions. Using mobile commerce, organizations can offer customers services that are easily accessed by a mobile device anytime and anywhere. Wireless Communications and Mobile Commerce collects holistic perspectives contributed by leading professionals to explore strategic considerations regarding potential opportunities and issues in mobile commerce. These professionals' discussions and contributions focus on providing a comprehensive understanding surrounding business strategies, models, management paradigms, architectures, infrastructure, strengths and weaknesses.

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