This handbook addresses the problem of resource allocation in mobile cellular networks, and presents RAS for operation in Universal Mobile Telecommunications systems formed of Hierarchical Cellular structures, which result in improved service for cellular customers. It examines RAS for TDMA and CDMA systems in multi-layered cellular structures, helping the reader to plan and design more effective networks. It also describes numerous evaluation methods to help implement superior channel allocation in a variety of environments, saving time and development costs during planning and simulation. It shows how the increased spectrum efficiency of systems such as TDMA, CDMA, and Wideband CDMA is likely to appear in the forthcoming generation of Universal Mobile Telecommunications systems. Increased spectrum efficiency means reduced infrastructure in current and future cellular networks, an increased number of users, and a decrease in network planning.