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MIMO解码转发双向中继系统中的传输策略与中断概率分析 被引量：1

Transmission Scheme and Outage Probability Analysis for MIMO Decode-and-Forward Two-Way Relay Systems
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摘要 在多输入多输出(M IMO)解码转发(DF)双向中继系统中,分别设计了两种信道状态信息(CSI)情况下的系统传输策略,并推导了系统中断概率的闭合表达式。当已知完全CSI时,采用(最大比发送-最大比接收)MRT-MRC技术设计波束形成和合并向量;当未知完全CSI时,设计了基于有限反馈的传输策略,并采用随机向量量化和G rassm ann两种码本进行数值仿真验证。仿真结论显示,所设计的双向中继传输策略的中断概率性能明显优于其他策略,所推导的闭合表达式能准确地表征系统中断概率性能。 In MIMO decode-and-forward （DF） two-way relay systems, we designed the transmission schemes and derived the closed-form expressions for the outage probability of the two-way relay system, based on two different scenarios of channel state informa- tion （CSI）. Assuming perfect CSI, we apply maximum-ratio-transmission and combining （MRT-MRC） technique to design the beamforming and combining vectors. Without perfect CSI, we design the transmission scheme with limited feedback, and verify the analytical results through two kinds of eodebooks, i. e. , random vector quantization and Grassmann. The simulation results show that, the proposed transmission schemes for the two-way relay system can outperform other transmission schemes in the performance of outage probability, and the accuracy of the derived closed-form expressions is also verified by the simulation results.
作者 赵睿 杨绿溪
机构地区 东南大学信息科学与工程学院
出处 《信号处理》 CSCD 北大核心 2010年第3期361-368,共8页 Journal of Signal Processing
基金 国家重点基础研究发展计划("973"计划)基金资助项目(2007CB310603) 国家自然科学基金资助项目(60672093 60496310 60702029 60902012) 国家高技术研究发展计划("863"计划)基金资助项目(2007AA01Z262) 江苏省自然科学基金资助项目(BK2005061)
关键词 解码转发双向中继 中断概率 MRT—MRC 有限反馈 Decode-and-forward two-way relay outage probability MRT-MRC limited feedback
分类号 TN911.22 [电子电信—通信与信息系统]
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参考文献18

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同被引文献12

  • 1殷勤业,张莹,丁乐,孟银阔.协作分集:一种新的空域分集技术[J].西安交通大学学报,2005,39(6):551-557. 被引量：58
  • 2Haykin S. Cognitive Radio: Brain-Empowered Wireless Communications[ J]. IEEE Journal on Selected Areas in Communications, 2005, 23 (2) : 201-220.
  • 3Liang Y-C, Chen K-C, Li G. Y, and P. Mahonen. Cog- nitive Radio Networking and Communications: An Over- vicw l J ]. IEEE Transactions on Vehicular Technology, 2011,60(7) : 3386-3407.
  • 4Wang B. B and Liu K. J. Ray. Advances in Cognitive Radio Networks: A Survey[J]. IEEE Journal of Selected Topics in Signal Processing, 2011, 5( 1 ) : 5-23.
  • 5Mark B. L. , Nasif A. O. Estimation of Maximum Inter- ferenee-Free Power Level for Opportunistic Spectrum Ac- cess [ J ]. IEEE Transactions on Wireless Communica- tions, 2009, 8(5) : 2505-2513.
  • 6Do Tuan, Mark B. L. Joint Spatial-Temporal Spectrum Sensing for Cognitive Radio Networks [ J ]. IEEE Transac- tions on Vehicular Technology, 2010, 59 (7) : 3480-3490.
  • 7Zou Y. L, Yao Y-D, Zheng B. Y. Cooperative RelayTechniques for Cognitive Radio Systems: Spectrum Sens- ing and Secondary Uesr Transmissions [ J ]. IEEE Com- munications Magazine, 2012, 50 (4) : 98 -103.
  • 8Laneman J. N, Tse D. N. C, and Womell G W. Coop- erative Diversity in Wireless Networks: Efficient Proto- cols and Outage Behavior[ J ]. IEEE Transactions on In- formation Theory, 2004, 50(12): 3062-3080.
  • 9Zou Y. L, Yao Y-D, and Zheng B. Y, Outage Probabili- ty Analysis of Cognitive Transmissions: Impact of Spec- trum Sensing Overhead [ J ]. IEEE Transactions on Wire- less Communications, 2010, 9 ( 8 ) : 2676-2688.
  • 10Yah Z, Zhang X and Wang W. B. Exact Outage Perform- once of Cognitive Relay Networks with Maximum Transmit power limit[J]. IEEE Communication Letters, 2011, 1S (12) : 1317-1319.

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信号处理
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