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一种具有快速译码结构和优化编码增益的全分集空频码

王欣 傅冰 李颖 魏急波

王欣, 傅冰, 李颖, 魏急波. 一种具有快速译码结构和优化编码增益的全分集空频码[J]. 电子与信息学报, 2008, 30(9): 2193-2197. doi: 10.3724/SP.J.1146.2007.00145
引用本文: 王欣, 傅冰, 李颖, 魏急波. 一种具有快速译码结构和优化编码增益的全分集空频码[J]. 电子与信息学报, 2008, 30(9): 2193-2197. doi: 10.3724/SP.J.1146.2007.00145
Wang Xin, Fu Bing, Li Ying, Wei Ji-Bo. A Full-Diversity Space-Frequency Codes with Fast Decoding Structure and Optimized Coding Gains[J]. Journal of Electronics & Information Technology, 2008, 30(9): 2193-2197. doi: 10.3724/SP.J.1146.2007.00145
Citation: Wang Xin, Fu Bing, Li Ying, Wei Ji-Bo. A Full-Diversity Space-Frequency Codes with Fast Decoding Structure and Optimized Coding Gains[J]. Journal of Electronics & Information Technology, 2008, 30(9): 2193-2197. doi: 10.3724/SP.J.1146.2007.00145

一种具有快速译码结构和优化编码增益的全分集空频码

doi: 10.3724/SP.J.1146.2007.00145

A Full-Diversity Space-Frequency Codes with Fast Decoding Structure and Optimized Coding Gains

  • 摘要: 本文通过将一个对角空时码乘以一个压缩映射矩阵(Compact Mapping Matrix, CMM)从而得到一个空频码字,在获得空时码原有空间分集性能的基础上可以获得指定阶数的频率分集,从而提高了频率选择性信道下相干空频编码MIMO-OFDM的性能,该文还对码字的编码增益进行了优化,进一步提高了系统性能。同时,利用对角星座的快速译码研究的新成果,该方法设计的码字其译码过程得到了大大的简化,有利于系统的硬件实现。
  • [1] Tarokh V, Seshadri N, and Calderbank A R. Space-timecodes for high data rate wireless communication:Performancecriterion and code construction[J].IEEE Trans. on Inform.Theory.1998, 44(2):744-765 [2] Bolcskei H and Paulraj A J. Space-frequency codedbroadband OFDM systems. IEEE WCNC'2000, Chicago, IL,Sep 2000: 1-6. [3] Liu Z, Xin Y, and Giannakis G B. Space-time-frequencycoded OFDM over frequency-selective fading channels[J].IEEETrans. on Signal Processing.2002, 50(10):2465-2476 [4] Su W F, Safar Z, Olfat M, and Liu K J R. Obtainingfull-diversity space-frequency codes from space-time codesvia mapping[J].IEEE Trans. on Signal Processing.2003, 51(11):2905-2916 [5] Chen X, Zhou K, and Aravena J L. A new family of unitaryspace-time codes with a fast parallel sphere decoderalgorithm[J].IEEE Trans. on Info Theory.2006, 52(1):115-140 [6] Siwamogsatham S, Fitz M P, and Grimm J H. A new view ofperformance analysis of transimit diversity schemes incorrelated Rayleigh fading[J].IEEE Trans. on Info Theory.2002,48(4):950-956 [7] Horn R A and Johnson C R. Topics in Matrix Analysis.Cambridge, UK., Cambridge Univ. Press, 1991. [8] Su W F, Safar Z, and Liu K J R. Full-rate full-diversityspace-frequency codes with opitimum coding advantage[J].IEEE Trans.on Info Theory.2005, 51(1):229-250 [9] Hochwald B M and Sweldens W. Differential unitaryspace-time modulation[J].IEEE Trans. on Commun.2000,48(3):2041- [10] Hochwald B M, Marzetta T L, Richardson T J, Sweldens W,and Urbanke R. Systematic design of unitary space-timeconstellations[J].IEEE Trans. on Info Theory.2000, 46(6):1962-1973 [11] Ling C, Mow W H, Li K H, and Kot A C. Multiple-antennadifferential lattice decoding[J].IEEE J. Select. Areas Commun.2005, 23(9):1821-1829
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出版历程
  • 收稿日期:  2007-01-24
  • 修回日期:  2007-07-16
  • 刊出日期:  2008-09-19

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