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基于网络编码的双向中继系统中断性能分析 被引量：3

Outage Analysis of Two-Way Relaying with Network Coding
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摘要 研究了频率非选择性瑞利衰落信道中,基于网络编码的双向中继系统的中断性能问题。基于放大重传(Amplify-and-Forward,AF)和联合解码重传(Joint Decode-and-Forward,JDF)机制,在瑞利衰落信道环境下,通过理论分析得出一般情况下的节点和系统中断概率解析式。在此基础上完成了数值仿真实验,结果表明在小信噪比情况下,JDF的中断性能优于AF系统;在大信噪比情况下,AF的中继性能将超过JDF系统的中断性能;随着信噪比以及信道不对称度的增加,AF和JDF系统的中断性能将趋于相同。此外,研究还发现,当速率大于0.5 bit/s.Hz时,JDF系统的中断性能急剧下降。 The outage performance of network coding based the two-way relaying system was investigated.The expressions of the outage probability for the Amplify-and-Forward（AF） and Joint Decode-and-Forward（JDF） based two-way relaying systems were derived in frequency-nonselective Rayleigh fading channels.Numerical simulation experiments were conducted,and the outage performance of the introduced two schemes were compared.The results show that the outage performance of the JDF based system is better than the AF based one in the low signal-to-noise（SNR） regions,and the AF scheme outperforms the JDF scheme when the SNR is high.In addition,it also shows that the outage probabilities of the two systems are approximately same with the improvement of SNR and channel asymmetry,and the outage performance of the JDF scheme deteriorate significantly when the rate is more than 0.5 bit/s·Hz.
作者 吉晓东 郑宝玉 邹丽
机构地区 南京邮电大学信号处理与传输研究院 南通大学电子信息学院
出处 《南京邮电大学学报（自然科学版）》 2011年第1期52-57,64,共7页 Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
基金 国家自然科学基金(60972039 60872002) 南通大学自然科学基金(09Z018)资助项目
关键词 双向中继 网络编码 物理层网络编码 放大重传 解码重传 中断概率 Two-Way Relaying Network Coding Physical-Layer Network Coding Amplify-and-Forward Decode-and-Forward Outage Probability
分类号 TN925 [电子电信—通信与信息系统]
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参考文献12

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同被引文献29

  • 1Sendonaris A, Erkip E, Aazhang B. User Cooperation Diversity Part I. System Description[J]. IEEE Transactions on Communications, 2003, 51(11): 1927-1948.
  • 2Laneman J N, Tse D N C, Wornell G W. Cooperative Diversity in Wireless Networks: Efficient Protocols and Outage Behavior[J]. IEEE Transactions on Information Theory, 2004, 50(12): 3062-3080.
  • 3Ahlswede R, Cai Ning, Li S Y R, et al. Network Information Flow[J]. IEEE Transactions on Information Theory, 2000, 46(4): 1204-1216.
  • 4Zhang Shengli, Liew S C, Lam P P. On the Synchronization of Physical-layer Network Coding[C]//Proc. of ITW’06. Chengdu, China: [s. n.], 2006: 404-408.
  • 5Liu Peng, Kim I M. Outage Probability Analysis of Physical- layer Network Coding in Bidirectional Relay Networks[C]// Proc. of QBSC’10. [S. 1.]: IEEE Press, 2010: 130-133.
  • 6Zhan Ao, He Chen, Jiang Lingge. Outage Behavior in Wireless Networks with Analog Network Coding[J]. IEEE Transactions on Vehicular Technology, 2012, 61(7): 3352- 3360.
  • 7Louie R H Y, Li Yonghui, Vucetic B. Practical Physical Layer Network Coding for 双向 Relay Channels: Performance Analysis and Comparison[J]. IEEE Transactions on Wireless Communications, 2010, 9(2): 764-777.
  • 8You Qimin, Li Yonghui, Chen Zhuo. Joint Relay Selection and Network Coding Using Decode-and-forward Protocol in Two- way Relay Channels[C]//Proc. of Global Telecommunications Conference. [S. 1.]: IEEE Press, 2010: 1-6.
  • 9Shin W, Lee N, Lim J B, et al. An Optimal Transmit Power Allocation for the 双向 Relay Channel Using Physical-layer Network Coding[C]//Proc. of ICC’09. [S. 1.]: IEEE Press, 2009: 1-6.
  • 10Jing Yindi. A Relay Selection Scheme for 双向 Amplify- and-forward Relay Networks[C]//Proc. of WCSP’09. [S. 1.]: IEEE Press, 2009: 1-5.

引证文献3

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南京邮电大学学报（自然科学版）
2011年 第1期

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