Fourth Generation Networks

Abstract

Mobile researchers are witnessing burgeoning interest in 4G wireless networks that patronize global roaming across diverse wireless and mobile networks. The pith of 4G mobile systems lies in seamlessly integrating the existing wireless technologies including Wideband Code Division Multiple Access (WCDMA). High Speed Uplink Packet Access (HSUPA)/ High-Speed Downlink Packet Access (HSDPA). 1×Evolution Data Optimized, (1×EVDO). Wireless LAN, and Bluetooth. However, migrating current systems to 4G engenders enormous challenges. With ever-changing specification and standards, developing a prototype requires flexible process to provide 4G system capabilities. The 4G system has its own advantages and associated dangers. This chapter intends to deal with adoption issues of 4G, the fundamentals as well as issues pertaining to 4G networks, standards, terminals, services of 4G, and the vision of network operators and service providers. Besides, to overcome the challenges of sophisticated personal sessions and service mobility, advanced mobility management (MM) is needed to fulfill the need for seamless global roaming. The chapter endeavors to make an evaluation on development, transition, and roadmap for fourth generation mobile communication system with a perspective of wireless convergence domain in addition to mobility management. Lastly, open research issues in 4G are succinctly discussed.