密集全双工设备直连网基于公平性的功率控制

Fairness based power allocation in dense full duplex D2D network

针对5G网络中密集全双工设备直连(full duplex device to device,FD-D2D)网络不同用户之间性能差异较大、性能不公平的问题,提出一种基于比例公平的功率控制模型,优化目标是在保证蜂窝用户能够满足最小通信速率要求的基础上减小FD-D2D用户间的性能差异。考虑到所提出模型功率控制模型的非凸特性,设计基于凸函数差结构的迭代方法搜索优化目标的全局最优解。仿真结果表明,所提算法能够有效提升FD-D2D用户公平性。

To solve the problems of large difference and unfairness in the performance of the users in 5G dense full duplex device to device（FD-D2D ）networks,aproportional fairness based power control model was proposed.The optimization goal of such model was to reduce the performance differences of the FD-D2D users while guaranteeing the minimum transmission data rate of the cellular users.Considering that the proposed power control model is non-convex,a difference of convex structure based iterative method was proposed to search the global optimal solution.Simulation results show that the proposed algorithm can effectively improve the fairness of the FD-D2D users.