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Two-way中继系统协作节点选择及功率分配策略

唐伦 刘通 陈前斌 曾孝平

唐伦, 刘通, 陈前斌, 曾孝平. Two-way中继系统协作节点选择及功率分配策略[J]. 电子与信息学报, 2010, 32(9): 2077-2082. doi: 10.3724/SP.J.1146.2010.00004
引用本文: 唐伦, 刘通, 陈前斌, 曾孝平. Two-way中继系统协作节点选择及功率分配策略[J]. 电子与信息学报, 2010, 32(9): 2077-2082. doi: 10.3724/SP.J.1146.2010.00004
Tang Lun, Liu Tong, Chen Qian-Bin, Zeng Xiao-Ping. Cooperative Node Selection and Power Allocation Strategy in Two-way Relay System[J]. Journal of Electronics and Information Technology, 2010, 32(9): 2077-2082. doi: 10.3724/SP.J.1146.2010.00004
Citation: Tang Lun, Liu Tong, Chen Qian-Bin, Zeng Xiao-Ping. Cooperative Node Selection and Power Allocation Strategy in Two-way Relay System[J]. Journal of Electronics and Information Technology, 2010, 32(9): 2077-2082. doi: 10.3724/SP.J.1146.2010.00004

Two-way中继系统协作节点选择及功率分配策略

doi: 10.3724/SP.J.1146.2010.00004
基金项目: 

国家自然科学基金(60972070),国家科技重大专项(2008ZX03003- 005)和重庆市自然科学基金重点项目(CSTC2009BA2090)资助课题

Cooperative Node Selection and Power Allocation Strategy in Two-way Relay System

  • 摘要: 为了提高Two-way中继系统总速率,该文提出了一种Two-way AF中继系统的双向中继选择(BRS)策略,该策略通过联合考虑中继节点处的接收信噪比和中继节点到目的节点间的信道增益,实现了最优中继选择。进一步,在最优中继基础上提出了Two-way中继系统两种优化功率分配策略:(1)基于凸优化的功率分配策略(OPA-CO);(2)基于信道增益差异的优化功率分配策略(OPA-DCG)。方案(1)提出了总功率受限的条件下最大化Two-way中继系统总速率的优化模型;方案(2)通过考虑链路之间信道增益的不同,提出了一种速率增量最大化的数学优化模型,为降低求解凸优化模型的复杂度,采用一种迭代功率分配算法求解上述优化模型。仿真结果证明两种策略均能提高系统总速率。
  • Huang W, Hong Y, and Kuo Discrete C J. Power allocation for lifetime maximization in cooperative networks[C]. IEEE Vehicular Technology Conference, MD, 2007: 581-585.[2]Hui Hui, Zhu Shi-hua, and Li Guo-bing. Distributed power allocation schemes for amplify-and-forward networks[C]. IEEE Wireless Communications and Networking Conference, Budapest Hungary, 2009: 1-6.[3]Shannon C E. Two-way communication channels[C]. Proc. 4th Berkeley Symp. Math. Statist. Stat. Prob. California, America, 1961: 611-644.[4]Rankov B and Wittneben A. Spectral efficient protocols for halfduplex fading relay channels[J].IEEE Journal on Selected Areas in Communications.2007, 25(2):379-389[5]Nam Wooseok, Chung Sae-young, and Lee Y H. Capacity bounds for two-way relay channels[C]. IEEE International Zurich Seminar on Digital Object Identifier. Zurich, Switzerland, 2008: 144-147.[6]Shin Wonjae, Lee Namyoon, and Lim Jong-bu, et al.. An optimal transmit power allocation for the two-way relay channel using physical-layer network coding[C]. IEEE International Conference on Communications Workshops, Dresden, Germany, 2009: 1-6.Jiang Bin, Gao Fei-fei, and Gao Xi-qi, et al.. Channel estimation for amplify-and-forward two-way relay network with power allocation[C]. IEEE International Conference on Communications. Dresden, Germany, 2009: 1-5.[7]吴素文, 吕星哉, 朱近康等. 基于信道统计特性的中继选择算法[J].电子与信息学报.2009, 31(5):1077-1081浏览Wu S W, Lǔ X Z, and Zhu J K, et al.. A statistic channel information-based relay selection scheme[J].Journal of Electronics Information Technology.2009, 31(5):1077-1081[8]Jing Yin-di. A relay selection scheme for two-way amplify-and-forward relay networks[C]. IEEE wireless communicationsignal processing. Nanjing, China, 2009: 1-5.
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出版历程
  • 收稿日期:  2010-01-04
  • 修回日期:  2010-05-31
  • 刊出日期:  2010-09-19

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