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协作通信中继选择与功率分配的联合优化 被引量：1

Joint Relay Selection and Power Allocation Optimization in Cooperative Communications
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摘要 最优中继节点的选择是协作通信系统必须解决的问题。根据目标节点信噪比要求提出一种选择中继节点的方案,并在此基础上推导了基于信噪比的源节点和中继节点最优功率分配方法。通过在matlab中仿真验证表明所提的功率分配方案能满足目标用户的信噪比要求,分析结果表明采用源节点的最优功率分配方案更有利于提高系统的功率效率。 The relay selection is one of the important parts in relay cooperative communication system.A strategy for relay nodes selection was proposed which based on signal to interference plus noise ratio constraints.The optimal solution for the power adaptation at the base station and the relay nodes was analyzed.Simulation results show that the proposed scheme achieves the respective target for multiple users.Results indicate that the optimally distributes power among the source nodes can improve system performance and energy efficiency,thus can be effectively used in cooperative communications.
作者 杨珂 许家栋
机构地区 西北工业大学电子信息学院
出处 《系统仿真学报》 CAS CSCD 北大核心 2010年第12期2995-2997,3029,共4页 Journal of System Simulation
关键词 协作通信 中继节点选取 功率分配 多用户 cooperative communication relay selection power allocation multiple users
分类号 TN803.4 [电子电信—信息与通信工程]
  • 相关文献

参考文献6

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共引文献10

同被引文献14

  • 1Laneman J N, Tse D N C, Womell G W.Cooperative diversity in wireless networks:efficient protocols and outage behavior[J]. IEEE Transactions on Information Theory, 2004, 50(12): 3062-3080.
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系统仿真学报
2010年 第12期

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