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高阶调制的GLST系统中的检测算法

杨宜进 赵春明 史志华 巩晓群

杨宜进, 赵春明, 史志华, 巩晓群. 高阶调制的GLST系统中的检测算法[J]. 电子与信息学报, 2007, 29(9): 2208-2211. doi: 10.3724/SP.J.1146.2006.00285
引用本文: 杨宜进, 赵春明, 史志华, 巩晓群. 高阶调制的GLST系统中的检测算法[J]. 电子与信息学报, 2007, 29(9): 2208-2211. doi: 10.3724/SP.J.1146.2006.00285
Yang Yi-jin, Zhao Chun-ming, Shi Zhi-hua, Gong Xiao-qun. Detectors for GLST Systems with Higher-order Modulations[J]. Journal of Electronics & Information Technology, 2007, 29(9): 2208-2211. doi: 10.3724/SP.J.1146.2006.00285
Citation: Yang Yi-jin, Zhao Chun-ming, Shi Zhi-hua, Gong Xiao-qun. Detectors for GLST Systems with Higher-order Modulations[J]. Journal of Electronics & Information Technology, 2007, 29(9): 2208-2211. doi: 10.3724/SP.J.1146.2006.00285

高阶调制的GLST系统中的检测算法

doi: 10.3724/SP.J.1146.2006.00285
基金项目: 

国家自然科学基金(60496311)资助课题

Detectors for GLST Systems with Higher-order Modulations

  • 摘要: 多天线无线通信系统的下行链路常采用GLST (Group Layered Space-Time architecture) 来增加接收分集度。该文基于GLST系统的等效多输入多输出模型,分析了该系统在符号传输上的正交性,并针对该系统在使用高阶调制时,传统的符号检测算法因计算复杂度太高而不可用的问题,提出了两种基于球形译码的低复杂度检测算法。仿真结果表明,两种算法均能获得逼近最大似然检测器的性能。
  • Tarokh V, Jafarkhani H, and Calderbank A R. Space-time block codes from orthogonal designs[J].IEEE Trans. on Inform. Theory.1999, 45(5):1456-1467[2]Golden G D, Foschini G J, and Valenzuela R A, et al.. Detection algorithm and initial laboratory results using the V-BLAST space-time communication architecture[J].Electron. Lett.1999, 35(1):14-15[3]Dai L, Sfar S, and Letaief K B. An efficient detector for combined space-time coding and layered processing[J].IEEE Trans. on Commun.2005, 53(9):1438-1442[4]Zhao L and Dubey V K. Detection schemes for space-time block code and spatial multiplexing combined system[J]. IEEE Commun. Lett., 2005, 9(1): 49-51.[5]Tarokh V, Naguib A, and Seshadri N, et al.. Combined array processing and space-time coding[J].IEEE Trans. on Inform. Theory.1999, 45(4):1121-1128[6]Dai Y, Lei Z, and Sun S. Ordered array processing for space-time coded systems[J].IEEE Commun. Lett.2004, 8(8):526-528[7]Dai L, Sfar S, and Letaief K B. A quasi-orthogonal group space-time architecture for higher diversity gains[C]. IEEE Global Telecommun- ications Conference, Dallas Texas, USA, 2004, 5: 2931-2935.[8]Prasad N and Varanasi M K. Optimum efficiently decodable layered space-time block codes[C]. Proc. 35th Asilomar Conf. Signals, Syst., Pacific Grove, CA, 2001: 227.[9]Rekaya G and Belfiore J C. Complexity of ML lattice decoders for the decoding of linear full rate space-time codes[C]. IEEE International Symposium on Information Theory (ISIT), Yokohama, Japan, 2003: 206.[10]Fincke U and Pohst M. Improved methods for calculating vectors of short length in a lattice, inlcuding a complexity analysis[J].Math. Computat.1985, 44(170):463-471[11]Horn R A and Johnson C R. Matrix Analysis[M].Cambridge University Press, 1985: 79-80.
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出版历程
  • 收稿日期:  2006-03-13
  • 修回日期:  2006-09-28
  • 刊出日期:  2007-09-19

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