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一种空时分组码在频率选择性信道下的半盲递推解码

罗铭 殷勤业 丁乐 曾雁星

罗铭, 殷勤业, 丁乐, 曾雁星. 一种空时分组码在频率选择性信道下的半盲递推解码[J]. 电子与信息学报, 2005, 27(12): 1942-1946.
引用本文: 罗铭, 殷勤业, 丁乐, 曾雁星. 一种空时分组码在频率选择性信道下的半盲递推解码[J]. 电子与信息学报, 2005, 27(12): 1942-1946.
Luo Ming, Yin Qin -ye, Ding Le, Zeng Yan-xing. Recursive Semi-blind Decoding of a Space-Time Block Code in Frequency-Selective Channel[J]. Journal of Electronics & Information Technology, 2005, 27(12): 1942-1946.
Citation: Luo Ming, Yin Qin -ye, Ding Le, Zeng Yan-xing. Recursive Semi-blind Decoding of a Space-Time Block Code in Frequency-Selective Channel[J]. Journal of Electronics & Information Technology, 2005, 27(12): 1942-1946.

一种空时分组码在频率选择性信道下的半盲递推解码

Recursive Semi-blind Decoding of a Space-Time Block Code in Frequency-Selective Channel

  • 摘要: 该文针对频率选择性信道下的Alamouti空时分组码,提出了一种在接收端未知信道信息的情况下的半盲的递推解码方法。该方法基于子空间方法,利用少量的导频符号和空时分组码的结构,递推地同时完成信道均衡和解码,直接解得信息符号。与已有的按块批处理的盲解码方法相比,递推方法因为在递推过程中利用已经判得的过去的信息符号,能够方便地进行性能与运算量的折衷。仿真结果验证了方法的有效性。
  • Naguib A F, Seshadri N, Calderbank A R. Increasing data rate over wireless channels[J].IEEE Signal Processing Mag.2000, 17(3):76-92[2]Alamouti S M. A simple transmitter diversity scheme for wireless communications[J].IEEE Journal on Selected Areas in Communications.1998, 16(8):1451-1458[3]Tarokh V, Jafarkhani H, Calderbank R. Space-time block codes from orthogonal designs[J].IEEE Trans. on Info. Theory.1999, 45(5):1456-1467[4]Liu Z, Giannakis G B, Scaglione A, et al. Decoding and equalization of unknown multipath channels based on block precoding and transmit-antenna diversity. Conference Record of the Thirty-Third Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, USA, 1999. 1557-1561.[5]Zhou Shengli, Muquet B, Giannakis G B. Subspace-based (semi-)blind channel estimation for block precoded space-time[6]OFDM. IEEE Trans. on Signal Processing, 2002, 50(5): 1215-1227.[7]Leus G,Swindlehurst A L. Blind and semi-blind equalization for generalized space-time block codes[J].IEEE Trans. on Signal Processing.2002, 50 (10):2489-2498[8]Zhao Z, Yin Q Y, Zhang H. Decoding of full rate space-time block code without channel state information in frequency[9]selective fading channels, Proc. IEEE ICASSP 2003, Hong Kong, May 2003, vol.5: 121-124.[10]Gunther J H, Swindlehurst A L. Recursive blind symbol estimation of convolutionally coded cochannel signals[J].IEEE Trans. on Signal Processing.2000, 48(10):956-965
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出版历程
  • 收稿日期:  2004-06-14
  • 修回日期:  2004-12-28
  • 刊出日期:  2005-12-19

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