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CDMA多用户双向中继系统中一种新的功率控制算法

Multi-user Two-Way Relay Power Control for CDMA System
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摘要 针对CDMA多用户双向中继系统,进行第1跳的误比特率拟合近似,获得了一种新的功率控制的效用函数,给出了相应的功率控制迭代算法,并在理论上证明了纳什均衡的存在性和唯一性.通过仿真验证了上述近似的可靠性,同时验证了所提出的功率控制算法具有收敛速度快以及收敛功率小的优点.在系统中用户对数目较多的情况下,该算法与传统算法相比能有效降低用户对的平均发射功率. For multiuser twoway relay in CDMA systems, bit error rate （BER） of the first jump is approxi mated, an efficient function of power control obtained, and an iterative algorithm for power control provided. Exsitence and uniqueness of Nash equilibrium is proved theoretically. Simulation results show reliability, fast convergence, and low power of convergence of the proposed approximation. Compared to traditonal algotithms, the proposed method can reduce the average transmit power with large number of users in the system.
作者 张二伟 邱玲
机构地区 中国科学技术大学个人通信与扩频实验室
出处 《应用科学学报》 CAS CSCD 北大核心 2014年第1期27-31,共5页 Journal of Applied Sciences
基金 中国科大-华为合作项目基金(No.YBWL2010256)资助
关键词 CDMA 功率控制 多用户双向中继 误比特率 纳什均衡 CDMA, power control, multi-user two-way relay, bit error rate （BER）, Nash equilibrium
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献10

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二级参考文献7

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