Distributed iterative scheduling for D2D communications

In this paper, we propose the novel distributed iterative scheduling (DIS) method where each device determines its own resources by exchanging resource assignment and resource demand information with neighboring devices. Higher spatial reuse gain as well as fairness can be achieved by resource conflict resolution based on signal-to-interference ratio at receiver device and channel-state dependent resource assignment in a synchronous and iterative manner. It is shown that the proposed scheme can provide the large number of concurrent links and high system throughput. With our simulation results, DIS can be a useful means as enabling efficient Device-to-Device (D2D) communications as compared to conventional WiFi system.