5G网络D2D通信模式与资源分配算法

摘要

为在5G网络移动终端密集分布场景中有效分配资源,给出一种基于D2D通信模式选择的资源分配算法.按照位置分布对D2D用户进行分组,并根据通信需求的优先级顺序为用户分配模式,通过对比正交模式、复用模式和蜂窝模式下信噪比,优化资源分配.针对单小区多用户场景下吞吐量的仿真分析表明,以吞吐量输出最大为准则,所给算法能够实现为用户分配最佳通信模式和资源的目标.%A resource allocation algorithm based on D2D communication mode selection is proposed to allocate resources effectively in the densely distributed scene of mobile terminals in 5G networks.The D2D users are grouped according to the location distribution,and the user allocation mode is prioritized according to the priority order of the communication requirements.The resource allocation is optimized by comparing the orthogonal mode,the multiplexing mode and the signal-to-noise ratio in the cellular mode.Simulation analysis of throughput in a single cell multi user scenario shows that the proposed algorithm can achieve the goal of allocating the best communication mode and resource for the user with the maximum throughput output criterion.