Green resource sharing for mobile device-to-device communications

In this work, we study the problem of green uplink resource sharing over mobile device-to-device (D2D) communications underlaying cellular network. We first construct a analysis model of energy efficiency, which takes into account different sharing modes, as well as QoS requirement and spectrum utilization of each user. Then, we formulate the sharing problem as a non-transferable coalition formation game, with the characteristic function which accounts for the gains in terms of energy efficiency and the costs in terms of mutual interference. Then, the resulting coalition structure shows the energy-efficient sharing strategy on the joint mode selection, uplink link reusing allocation, and power management. Moreover, we develop a distributed coalition formation algorithm based on the merge-and-split rule and the Pare to order. The distributed solution is characterized through stability notions and is adapted to user mobility. Simulation results are provided to demonstrate the effectiveness of our proposed game model and algorithm.