D2D通信中干扰协调算法的研究

D2D(Device-to-Device,终端直通通信)技术是指用户可以直接进行通信而不用经过基站的一种终端直通通信技术,移动蜂窝使用终端直通通信技术能够增加蜂窝系统性能,然而却带来了较多的干扰以及加大了能量损耗.为了达到用户和基站间的相互干扰,增加频谱利用效率和能量利用效率,文章以D2D 用户和速率为优化目标提出了一种联合资源分配和功率控制的方法,用以达到高能效的终端直通通信.仿真结果表明:文章提出的联合信道分配和功率控制方案,能明显减少D2D用户与蜂窝系统受到的干扰,增加蜂窝频谱利用率以及D2D用户和速率.

D2D(Device-to-Device,Terminal Direct Communication)technology refers to a terminal direct communication technology in which users can communicate directly without passing through the base station.Mobile cellular users of terminal direct communication technology can increase the performance of cellular systems,but it brings more interference and energy loss.In order to achieve mutual interference between users and base stations,and increase the spectrum utilization efficiency and energy utilization efficiency,this paper proposes a method for joint resource allocation and power control with D2D users and rates as the optimization goal to achieve high-efficiency terminal direct communication.Simulation results show that the joint resource allocation and power control scheme proposed in this paper can significantly reduce the interference between D2D users and the cellular system,increase the cellular spectrum utilization rate,and D2D users and rates.