D2D communication user pairing method based on social community

The invention discloses a D2D communication user pairing method based on a social community, and the method comprises the steps: introducing a social attribute of a social network in the discovery ofa device-to-device (D2D) communication device, promoting the cooperation of D2D users through the social interaction between mobile users, and optimizing the pairing between the D2D users. And according to the three social attributes in the social network, namely the social relationship, the social group and the centrality, weighted combination is carried out to form social trust values among theusers. According to a social trust value between a community discovery algorithm Loovain algorithm based on modularity and users, D2D communication user pairing is designed by using the attribute of asocial network, and the system is projected to two layers: a physical layer and a social layer. In the aspect of a physical layer, the distance between D2D users is shortened, the shortest distance target user is searched, and