Socially‐Aware Cooperative D2D and D4D Communications toward Fog Networking
Xu Chen, Junshan Zhang, Satyajayant Misra · 2017
This chapter aims at boosting the network bandwidth by promoting collaborative communications between handheld devices at the network edge by using the principle of fog networking. Such device-to-device (D2D) and device-for-device (D4D) communications can offer a variety of advantages over traditional cellular communications, such as higher user throughput, improved spectral efficiency, and extended network coverage. The chapter proposes a novel social trust and social reciprocity-based framework to promote efficient cooperation among devices for cooperative D2D and D4D communications-based fog networking. It introduces the physical-social graphs to model the interplay therein while capturing the physical constraints for feasible D2D cooperation and the social relationships among devices for effective cooperation by projecting D2D communications in a mobile social network onto both physical and social domains. The chapter formulates the relay selection problem for social trust and social reciprocity-based cooperative D2D communications as a coalitional game. It develops a network-assisted mechanism to implement the coalitional game-based solution.