Energy efficiency in multi-source network-coded device-to-device cooperative communications
Weijun Xing, Chao Wang, Ping Wang, Fuqiang Liu · 2016
Many researchers have recently proposed adopting relays to enhance performance in device-to-device (D2D) communication systems. With D2D technology, geographically closed terminals can be connected directly. By this means, information delivery in many practical application scenarios (e.g., in a shopping mall, a number of shops intend to distribute their vouchers/advertisements to potential customers in the vicinity) can be conducted more efficiently. In this paper we consider a wireless multi-source multi-destination D2D content distribution network and propose a network-coding based cooperative transmission scheme. Through system achievable energy efficiency analysis, we exhibit the potential benefits of applying network coding and user cooperation in future D2D communication systems.