| 协作网络中基于中继选择的协作波束赋形算法 |
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| 引用本文： | 刘毅,陈晓鹏,张继光,向文豪,张博勋.协作网络中基于中继选择的协作波束赋形算法[J].吉林大学学报(工学版),2011,41(5):1480-1484. |
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| 作者姓名： | 刘毅 陈晓鹏 张继光 向文豪 张博勋 |
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| 作者单位： | 1. 船舶系统工程部,北京,100094
2. 中国移动通信有限公司西安分公司,西安,100075 |
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| 基金项目： | 国家自然科学基金项目(60772113) |
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| 摘 要： | 针对传统多中继网络中所有中继节点都参与协作的协作波束赋形方法,提出了一种基于选择的协作波束赋形算法。该方法将最小化系统平均误码率作为目标,得到一个次优的中继节点选择门限,小于门限的中继节点被逐一剔除,从而保证了网络中的资源只分配给有用的中继节点,提高了协作波束赋形的分集增益。该选择方法需要的搜索次数和中继节点的个数相等,因此大大降低了选择过程的复杂度。蒙特卡洛仿真表明,选择波束赋形算法可以有效地提高系统误码率和网络能量效率。
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| 关 键 词： | 通信技术 放大转发 协作波束赋形 中继选择 能量有效性 |
Cooperative beamforming based on selection for relay networks |
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| LIU Yi,CHEN Xiao-peng,ZHANG Ji-guang,XIANG Wen-hao,ZHANG Bo-xun.Cooperative beamforming based on selection for relay networks[J].Journal of Jilin University:Eng and Technol Ed,2011,41(5):1480-1484. |
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| Authors: | LIU Yi CHEN Xiao-peng ZHANG Ji-guang XIANG Wen-hao ZHANG Bo-xun |
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| Affiliation: | LIU Yi1,CHEN Xiao-peng2,ZHANG Ji-guang1,XIANG Wen-hao1,ZHANG Bo-xun1(1.System Engineering Research Institute,Beijing 100094,China,2.China Mobile Communications Corporation Xi'an Branch,Xi'an 100075,China) |
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| Abstract: | A cooperative beamforming scheme based on relay selection(S-BF) is presented.To minimize the probability of the end-to-end average Bit Error Rate(BER),a near-optimal threshold is determined to select those appropriate relay nodes participating in beamforming.This method guarantees that the energy is only allocated to those appropriate relay nodes,and accordingly improves the diversity in the cooperative beamforming.The number of selection searches is equivalent to the number of relay nodes,which will decrea... |
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| Keywords: | communication amplify-and-forward(AF) cooperative beamforming relay selection energy efficiency |
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