After 4G, perhaps by 2020, mobile computing and wireless systems will enter the Fifth Generation (5G), which promises evolutionary or at least revolutionary services. What those advanced services will look, sound, and feel like is the topic of this book?speculative, futuristic, and compelling ideas under consideration now may become the norm sooner than we think. As a guide for advanced developers and communication network scientists, "4G and Beyond" describes the latest developments in communication?and "what?s next!"