With contributions from prominent researchers, this is a comprehensive review of state-of-the-art architectures, protocols, technologies and applications in pervasive computing and wireless networking. It covers existing and emerging communications and computing models, design architectures, mobile and wireless applications, technologies, and research issues in ad hoc networking, pervasive computing, communications, and other related fields. The book illustrates the design, implementation, and deployment of mobile and ubiquitous systems and discusses a new trend towards intelligent systems that create software that is constantly available for users everywhere.