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基于模拟网络编码的多用户信息交换的中断概率 被引量：2

Outage Probability of Multiuser Information Exchange Based on Analogy Network Coding
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摘要 与通常假定一对用户通过一个中继节点进行数据交换不同,该文考虑两对用户通过一个公共中继节点的协作进行数据交换的无线通信模型,研究了基于模拟网络编码的放大转发中继策略的中断概率。相对于传统的基于放大转发或译码转发等的、需要8个时隙实现数据交换的中继策略和传统的基于译码转发的、需要5个时隙实现数据交换的网络编码中继策略,模拟网络编码的中继策略只需要3个时隙就可以实现两对用户之间的数据交换,因而与前两种中继策略相比,基于模拟网络编码的中继策略能极大地提高系统的吞吐量(该中继策略分别提高了166%和66%的系统吞吐量)或者极大地减少中继节点的能量消耗。在所提的基于模拟网络编码中继策略下,该文进一步推导出了系统中断概率的上界和下界,数值分析结果表明该上下界比较接近,特别是当中继节点位于第一对用户节点中间时上下界非常接近。 This paper investigates outage probability under the amplify-and-forward（AF）relaying scheme based on analogy network coding（ANC）over wireless communication context,where not one but two pairs of users exchange their data by virtue of an common relay.Compared with the traditional relaying schemes such as amplify-and-forward（AF）,decode-and-forward（DF）,which need 8 time slots to exchange the information,and network coding based on DF,which needs 5 time slots to exchange the information,ANC relaying protocol can accomplish the information exchange between two pairs of users using only 3 time slots,thus,it can achieve 166% improvement in physical-layer throughput over the traditional scheduling scheme based on AF or DF,and 66%over the network coding scheme based on DF,on the other words,it can dramatically increase the system capacity or decrease the total energy consumed by relay node.This paper also presents the upper bound and lower bound of system outage probability under proposed ANC relaying protocol. The results of numerical analysis show that these bounds approach comparably the exact system outage probability,especially when the relay node lies in the middle of the first pair of user nodes.
作者 李世唐 郑宝玉 侯晓赟 崔景伍
机构地区 信号处理与传输研究院南京邮电大学 数学与计算机科学学院福建师范大学
出处 《信号处理》 CSCD 北大核心 2011年第7期975-981,共7页 Journal of Signal Processing
基金 国家自然科学基金(60972039 61072080) 江苏省自然科学基金重点项目(BK2010077) 东南大学移动通信国家重点实验室开放课题(2010D02) 信号与信息处理重庆市市级重点实验室开放研究基金资助课题
关键词 模拟网络编码 放大转发 中断概率 信息交换 Analogy network coding Amplify-and-forward Outage probability Information exchange
分类号 TP393 [自动化与计算机技术—计算机应用技术]
  • 相关文献

参考文献23

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  • 2Sendonaris A.,Erkip E., and Zhang B.. User cooperation diversity-part II: Implement Aspects and Performance Analysis[J]. IEEE Trans. Commun. 2003, 51 (11): 1939-1948.
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二级参考文献30

  • 1Sendonaris A, Erkip E, and Zhang B. User cooperation diversity-partⅠ: System description[J]. IEEE Transactions on Communications, 2003, 51(11): 1927-1938.
  • 2Sendonaris A, Erkip E, and Zhang B. User cooperation diversity-part Ⅱ: Implement aspects and performance analysis[J]. IEEE Transactions on Communications, 2003, 51(11): 1939-1948.
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  • 6Li S Y R, Yeung R W, and Cai N. Linear network coding[J].IEEE Transactions on Information Theory, 2003, 49(2): 371-381.
  • 7Koetter R and Medard M. An algebraic approach to network coding[J]. IEEE/ACM Transactions on Networking, 2003, 11(5): 782-795.
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共引文献6

同被引文献24

  • 1Laneman J N, Hunter T, Womell G W. Cooperative di- versity in wireless networks: efficient protocols and outage behavior[ J ]. IEEE Transactions on Information Theory, 2004, 50(12) : 3062-3080.
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  • 6Louie R, Li Y, and Vucetic B. Practical Physical Layer Network Coding for Two-W-ay Relay Channels: Perform- ance Analysis and Comparision [ J ]. IEEE Transactions on Wireless Communications, 2010, 9 (2) : 764-777.
  • 7Guan W, and Liu K. Performance analysis of two-way re- laying with non-coherent differential modulation [ J ]. IEEE Transactions on Wireless Communications, 2011, 10(6) : 2004-2014.
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  • 10Onat F, Adinoyi A, Fan Y, Halim Y, and Thompson J. Threshold selection for SNR-based selective digital relaying in cooperative wireless networks [ J ]. IEEE Transactions on Wireless Communications, 2005, 7 ( 11 ) : 4226-4237.

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信号处理
2011年 第7期

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