Yufeng Wang, Athansios V. Vasliakos, Qun Jon and Hongbo Zhu

Architecture: Device-to-Device Communications Technologies. Peer and Service Discovery in Proximity Service. Message Forwarding Strategies. Profile Matching and Recommendation Systems in Proximity Service. Proximity-Service Application Development Framework. Fundamental Issues: Smart Phone-Based Human Activity Recognition. Indoor Localization and Tracking Systems. Mobile Crowdsourcing with Built-in Incentives. Energy-Efficient Technologies in Device-to-Device-Based Proximity Service. Applications of Proximity Service: Vehicular Social Networks. Device-to-Device-Based Traffic Offloading.

D2D-based proximity service is a very hot topic with great commercial potential from an application standpoint. Unlike existing books which focus on D2D communications technologies, this book fills a gap by summarizing and analyzing the latest applications and research results in academic, industrial fields, and standardization. The authors present the architecture, fundamental issues, and applications in a D2D networking environment from both application and interdisciplinary points of view.