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不均等双向解码转发机会中继通信性能分析 被引量：5

Performance analysis of asymmetric two-way decode-and-forward opportunity relaying
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摘要 双向中继通信在保证传统单向协同通信空间分集收益的同时提高了频谱利用率。在双向不等速率要求场景下,针对结合解码转发网络编码的双向机会中继通信系统模型,给出了系统通信的近似中断概率闭式表达,并且提出了已知信道瞬时信息条件下的功率优化分配方法。仿真结果分析验证了解码转发双向机会中继通信的中断概率性能,表明在功率优化分配后和中等信噪比条件下,解码转发双向机会中继通信比模拟网络编码方式有2～3dB的收益。 Two-way relaying communication improves the spectrum efficiency while obtaining the space diversity gains of traditional one way cooperative communication. Based on the decode-and-forward two way opportunity relaying communication model with asymmetric rate requirements, the approximate closed expression of outage probability is presented, and the optimization of power allocation is proposed when channel state information is known. Simulation results verify the outage performance of decode-and forward two-way opportunity relaying. Compared with the analog network coding, the decode-and-forward network coding has a profit of 2- 3 dB in the middle signal-to-noise ratio with optimal transmit power allocation.
作者 刘洪 任术波 项海格
机构地区 北京大学信息科学技术学院
出处 《系统工程与电子技术》 EI CSCD 北大核心 2012年第11期2344-2350,共7页 Systems Engineering and Electronics
基金 国家自然科学基金(61071083)资助课题
关键词 协同通信 双向机会中继 功率优化分配 解码转发网络编码 cooperative communication two way opportunity relaying optimal power allocation decode- and forward network coding
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献21

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同被引文献36

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  • 5Rong Yue. Joint source and relay optimization for two-way linear non- regenerative MIMO relay communications [ J ]. I EEE Trans on Sig- nal Processing, 2012, 60 (12): 6533-6546.
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  • 9Xia Weicheng, Shao Shixiang, Sun Jun. Relay selection strategy for device to device communication[ C ]//Prec of IET International Con- ference on Information and Communications Technologies. [ S. I. ] : IET, 2013 : 318-323.
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引证文献5

二级引证文献10

系统工程与电子技术
2012年 第11期

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