Social-aware Distributed Joint Mode Selection and Link Allocation for Mobile D2D Communications

This work studies the social-aware joint issue of mode selection and link allocation over mobile device-to-device (D2D) communications underlaying cellular networks. We first model this joint problem as a hedonic coalition formation game, which considers the tradeoff between the benefits in terms of achievable rate and the costs in terms of the mutual interference. Importantly, we introduce the local social knowledge, i.e., the social selfishness, into the proposed game, which helps to stimulate the cooperation from the perspectives of user need. Moreover, we develop a dynamic distributed algorithm based on a coalition formation process in which the cellular users negotiate the switch rule with each other based on the well-defined individual preference relations. Then, we analyze its properties, and demonstrate that the resulting partition is characterized by the novel stability notion and can be adapted to the user mobility.