Socially-Inspired Peer Discovery for D2D Communications

Social-Aware Peer Discovery for Energy Harvesting-Based Device-To-Device Communications

“…In fact, the literature contains very few proposals for social-aware peer discovery mechanisms [17,18,19,20,21]. Among those methods that have been proposed, three schemes [17,18,19] adopt an autonomous approach. The method in [17] focuses on the security of the data transmissions and it chooses UEs with high social ties (i.e., high trust) to perform D2D communications.…”

“…Consequently, the authors in [18] proposed a two-hop pairing process, in which any UE failing to find a trusted UE with its wanted contents for D2D communications sends a request to all the one-hop neighbors of its trusted UEs. The method in [19] uses three key social attributes, namely the trust degree, the similarity degree between UEs, and the center degree of each UE, to construct a unified metric with which to construct neighbor lists for peer discovery. Reference [20] addresses the content delivery problem that is related to optimization of peer discovery and resource allocation by combining both the social and physical layer information in D2D networks.…”

“…In practice, a large proportion of D2D communications stems from the interaction between users over social media, such as Facebook, Twitter, Plurk, and so on [15,16]. Consequently, many studies have investigated the problem of social-aware peer discovery [17,18,19,20,21]. In general, the results have shown that the social behavior of the users provides a useful tool for adjusting the beacon rates of the UEs in such a way to improve the overall efficiency of the peer discovery process [17,18,19,20,21].…”