基于干扰指示的D2D粒子群功率控制算法

D2Dparticle swarm optimization power control algorithm based on interfence indication

为解决D2D通信的引入对蜂窝网络带来的干扰问题,提出一种基于干扰指示的D2D粒子群功率控制算法。分别计算蜂窝用户和D2D用户所受干扰并生成干扰指示矩阵,选择最佳用户配对方式并为D2D用户分配频谱资源;采用粒子群算法分别对蜂窝用户和D2D用户的发射功率进行调整,提高系统整体性能。仿真结果表明,所提算法相较其它算法能够有效提升系统吞吐量,保障用户的公平性。

To solve the interference problem caused by D2D communication that is introduced to the cellular network, D2D particle swarm optimization power control algorithm based on interfence indication was proposed. The interference indicator matrix was generated by the interference of cellular users and D2D users which were calculated respectively, to select the best user pai- ring and allocate spectrum resources to D2D users. The transmission power of cellular users and D2D users was adjusted using particle swarm optimization algorithm to improve the overall performance of the system. The simulation results show that the proposed algorithm can effectively improve the system throughput and ensure the fairness of the users compared with other algorithms.