【作者】 蔡木林； 蔡跃明；

【Author】 Mulin Cai,Yueming Cai (Institute of Communications Engineering,PLA UST,Nanjing 210007,China)

【机构】 解放军理工大学通信工程学院；

【摘要】 为了优化多中继节点协同通信系统的性能,本文基于信道状态信息设计了一种中继选择策略,分析了源节点和中继节点之间的最优功率分配,提出了基于改进的子载波配对算法,在此基础上给出了一种综合考虑节点选择、功率分配和子载波分配的资源分配算法。仿真结果表明,本文给出的资源分配算法能有效提高系统频谱效率。更多还原

【Abstract】 In this paper,we design a relay selection based on channel state information,analyze the optimal power allocation between the source and destination,and propose an improved subcarrier matching allocation.On this condition,a resource allocation which joint relay selection,power allocation and subcarrier matching is given to optimize the multi-relayers cooperative communication systems.Simulation results show that the proposed strategy notably improve system performance and radio efficiency.更多还原