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准正交空时分组码的自适应设计 被引量：4

Adaptive Design for Quasi-Orthogonal Space-Time Block Codes
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摘要 为了能在满足空时分组码完全分集的同时尽可能降低译码复杂度,提出了准正交空时分组码的自适应设计方案.在准正交空时分组码的编码结构上添加自适应系数,根据当前信道状态信息计算自适应系数的具体数值.设计的目的是保证传输的数据符号之间相互正交,彼此没有干扰,从而实现完全分集,并能采用复杂度低的单符号译码方法.仿真结果表明,准正交空时分组码自适应方案的误码率性能要明显好于采用星座旋转的准正交空时分组码方案,只需要采用有限反馈的方法就能实现近似理想反馈的误码率性能. To achieve full diversity and decrease decoding complexity, an adaptive design for quasi-orthogonal space-time block codes is proposed. Known of channel state information, the adaptive parameter can be calculated, and the input symbols can be coded in the designed structure. With the particular space-time codes structure, symbols on different antenna are orthogonal to each other, and the received symbols can be single-symbol decoded. Simulation shows that the adaptive scheme has obvious advantage compared with constellation rotation scheme. The limited feedback scheme is feasible and has almost the same optimal performance as the ideal full feedback scheme.
作者 董宇 赵慧 刘洋 王文博
机构地区 泛网无线通信教育部重点实验室(北京邮电大学)
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2009年第2期85-88,105,共5页 Journal of Beijing University of Posts and Telecommunications
基金 国家自然科学基金项目(60802082)
关键词 准正交空时分组码 自适应 完全分集 单符号译码 有限反馈 quasi-orthogonal space-time block codes adaptive full diversity single-symbol decod-able 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6

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  • 2Tarokh V, Jafarkhani H, Calderbank A R. Space-time block codes from orthogonal designs[J]. IEEE Transaction on Information Theory, 1999, 45(5) : 1456-1467.
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同被引文献29

  • 1Lei Guowei, Zhuang Mingjie. Performance Analysis of Quasi-orthogonal STBC via Antenna Selection[C]// ICCS2008. 2008, 1:670-673.
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  • 4Badic B, Fuxjaeger P, Weinrichter H. Performance of a quasi-orthogonal space-time code with antenna selection[J]. Electronics Letters, 2004, 40 (20) : 1282- 1284.
  • 5BELFIORE J C, REKAYA G, VITERBO E. The golden code: a 2×2 full-rate space-time code with non- vanishing determinants [J]. IEEE Transactions on Information Theory, 2005, 51(4) : 1432-1436.
  • 6HOWARD S D, SIRIANUNPIBOON S, CALDERBANK A R. Low complexity essentially maximum likelihood decoding of perfect space-time block codes [C]// Proc ICASSP. Piscataway, NJ, USA. IEEE Press, 2009: 2725-2728.
  • 7WANG Huiming, XIA Xianggen, YIN Qinye, et al. A family of space-time block codes achieving full diversity with linear receivers [J]. IEEE Transactions on Communications, 2009, 57(12): 3607-3617.
  • 8LIU Jing, ZHANG Jiankang, WONG K M. On the design of minimum BER linear space-time block codes for MIMO systems equipped with MMSE receivers [J]. IEEE Trans Signal Processing, 2006, 54 (8): 3147-3158.
  • 9KARMAKAR S, RAJAN B S. Multigroup deeodable STBCs from Clifford algebras[J]. IEEE Trans Information Theory, 2009, 55(1): 223-231.
  • 10ZHU Hufei, CHEN Wen, LI Bin. Efficient square-root algorithms for the extended V-BLAST with selective per-antenna rate control[C]//Proc of Vehicular Technology Conference. Piscataway, NJ, USA: IEEE Press, 2010: 1-5.

引证文献4

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北京邮电大学学报
2009年 第2期

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