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The optimal power distribution in cooperative communication relay system

The optimal power distribution in cooperative communication relay system
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摘要 In order to optimize power utilization of relay nodes in cooperative communication,a power allocation algorithm with objective function to maximize system capacity is proposed.Based on the convex optimization theory,an ellipsoid algorithm is used to solve this problem,which could simplify the subgradient choosing steps and improve convergence stability,so that an optimized power allocation algorithm is presented.Theoretical analysis and simulation results show that the algorithm can effectively distribute the power of each node with lower complexity,and ensure the transmission capability of relay nodes in cooperative communication. In order to optimize power utilization of relay nodes in cooperative communication,a power allocation algorithm with objective function to maximize system capacity is proposed.Based on the convex optimization theory,an ellipsoid algorithm is used to solve this problem,which could simplify the subgradient choosing steps and improve convergence stability,so that an optimized power allocation algorithm is presented.Theoretical analysis and simulation results show that the algorithm can effectively distribute the power of each node with lower complexity,and ensure the transmission capability of relay nodes in cooperative communication.
出处 《High Technology Letters》 EI CAS 2013年第4期371-377,共7页 高技术通讯(英文版)
基金 Supported by the National High Technology Research and Development Programme of China(No.2008AA01A322) National Science andTechnology Major Projects(No.2011ZX03001-007-03)
关键词 relay network power distribution convex optimization ellipsoid algorithm 最优功率分配 中继系统 通信 协作 功率分配算法 优化理论 传输能力 目标函数
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