Device-to-Device Communications

Abstract

This chapter provides an account of the most significant areas of scenarios and applications relevant to Device-To-Device (D2D) communications. At first, a state of the art review is provided, with focus on the special technological challenges. In addition, integration initiatives with modern cellular technologies and standards are given. Important architecture concepts like e.g., resource management and mobility issues have been highlighted, in order to present the main areas of impact of D2D communications. Since D2D communications capitalise on the contemporary networking paradigm of cooperative communications novel methods for overcoming several limitations have been discussed and emerging paradigms such as proximity and location-based services, coupled with social networking and commercial services have been considered. Finally, possible future research directions relevant to D2D networking are discussed.