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Volume 32 Issue 9
Oct.  2010
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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 & 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 & Information Technology, 2010, 32(9): 2077-2082. doi: 10.3724/SP.J.1146.2010.00004

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

doi: 10.3724/SP.J.1146.2010.00004
  • Received Date: 2010-01-04
  • Rev Recd Date: 2010-05-31
  • Publish Date: 2010-09-19
  • In order to improve the sum-rate of Two-way relay system, this paper proposes a Bi-directional Relay Selection (BRS) scheme in Two-way AF relay system. This scheme selects the optimal relay through joint considering the receive SNR (Signal Noise Rate) at the relay node and the channel gain between relay and destination node; Furthermore, this paper proposes two optimal power allocation scheme in Two-way relay system: (1) Optimal Power Allocation scheme based on Convex Optimization (OPA-CO), (2) Optimal Power Allocation scheme based on the Differences of Channel Gains (OPA-DCG); Scheme (1) establishes the optimal issue that how to maximize the sum-rate of Two-way relay system when total power is limited; Scheme (2) establishes a mathematical optimal model that how to maximize the increment of sum-rate based on the differences of channels gains. This paper uses an iterative power allocation algorithm to solve the optimal model mentioned above for the purpose of reducing the complexity of solving convex optimal mode. Simulation result shows that all the schemes mentioned above can improve the sum-rate.
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  • 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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