放大转发双向中继网络中基于粒子群优化的源功率控制算法

A Source Power Control Algorithm Based on Particle Swarm Optimization in Amplify-and-Forward Two-Way Relaying Networks

研究了基于放大转发的双向中继网络中的源功率控制问题,其中双向中继网络包含两个终端节点与多个中继节点。基于粒子群优化理论,文中设计了一种用于在给定网络总发送功率时,最大化双向中继网络速率和的源功率控制算法。通过仿真表明,相对于不考虑源功率控制的已有算法,本算法能够有效提高双向中继网络的速率和。

This paper addresses the source power control problem in an amplify-and-forward two-way relaying network which consists of two terminal nodes and a couple of relay nodes. Based on particle swarm optimization, a source power control algorithm is designed that maximizes the sum-rate of two-way relaying network subject to total network power constraint. Simulation results have shown that our proposed algorithm can improve the sum-rate significantly when compared to the existing algorithm which does not concern the source power control.