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MIMO系统中线性弥散空时码的优化设计 被引量：1

Optimized Design of Linear Dispersion Space-time Codes in MIMO System
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摘要 MIMO系统的大部分空时编码方法在设计时单一强调对传输分集性能或传输复用性能的提高,为了联合提高分集性能和复用性能,在LDC编码基础上提出了线性正交弥散空时码(OLDC),LDC编码的优化中利用遗传算法来构造OLDC的空时正交调制基矩阵。优化的编码方法设计简单,便于调制解调。仿真结果表明,OLDC码比传统的LDC编码在误码性能、分集性能、复用性能等方面均有大幅度提高。 Most space - time codes of MIMO system only emphasize improving the performance of diversity gain or spatial multiplexing gain. For the joint diversity and multiplexing optimal MIMO transmitting,The orthogonal linear dispersion space -time code （OLDC） based on LDC is proposed . It uses genetic algorithm（GA） to construct space- time orthogonal base matrix of OLDC. Optimized coding method is simple in design, modulation and demodulation. Simulation results show that OLDC performs better than traditional LDC on BER, diversity and multiplexing capacity.
作者 王骐
机构地区 湖北教育学院物理与电子工程系
出处 《电讯技术》 2007年第3期141-144,共4页 Telecommunication Engineering
关键词 MIMO系统 线性弥散空时码 线性正交弥散空时码 分集增益 复用增益 遗传算法 MIMO system linear dispersion code （ LDC ） orthogonal linear dispersion code （ OLDC ） diversity gain spatial multiplexing gain GA
分类号 TN911 [电子电信—通信与信息系统]
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参考文献8

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同被引文献15

  • 1SENDONARIS A, ERKIP E, AAZHANG B. User cooper- ation diversity. Part I. System description[ J]. IEEE Trans- actions on Communications ,2003,51 ( 11 ) :1927-1938.
  • 2SENDONARIS A, ERKIP E, AAZHANG B. User coop- eration diversity. Part II. Implementation aspects and performance analysis[J]. IEEE Transactions on Commu- nications, 2003, 51 ( 11 ) : 1939-1948.
  • 3LIM C, YOO T, CLERCKX B. Recent trend of multiuser MIMO in LTE-advanced [ J ]. Communications Maga- zine, 2013, 51(3) : 127-135.
  • 4ALAMOUTI S M. A simple transmitter diversity scheme for wireless communication [ J ]. Areas Communication, 1998, 16(8): 1451-1458.
  • 5PENG T, LAMARE R C, SCHMEINK A. Adaptive dis- tributed space-time coding based on adjustable code matri- ces for cooperative MIMO relaying systems [ J ]. IEEE Transactions on Communications ,2013,61 (7):2692-2703.
  • 6HIMSOON T, SU W, LIU K J R. Differential transmis- sion for amplify-and-forward cooperative communications [ J ]. Signal Processing Letters, 2005, 12 (9) : 597-600.
  • 7NICHOLAS L J, WORNELL G W, MEMBER S. Distrib- uted space-time coded protocols for Exploiting cooperative diversity in wireless networks [ J ]. Trans. Inf. Theory, 2003, 1 (10) : 77-81.
  • 8CHOI, CHAN-HO, KWON, et al. Spectral efficient co- operative diversity technique with multi-layered modula- tion [ J]. IEEE Transactions on Communications, 2010, 58(12) : 3480-3490.
  • 9JIANG Hao, SHAO Shixiang, SUN Jun. Virtual MIMO communication based on D2D link [ C ]//Consumer EIec- tronics, Communications and Networks , Xianning: IEEE Press, 2013: 718-722.
  • 10ZHANG Yan, YANG Fengfan, HU Guobing, LDPC Coded Combined with Space-Time Codes in Cooperative MIMO System [J]. Journal of network, 2014,9(5) :1268-1273.

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电讯技术
2007年 第3期

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