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MIMO通信系統(tǒng)中一種新的自適應(yīng)均衡方法

周亮 邱玲 朱近康

周亮, 邱玲, 朱近康. MIMO通信系統(tǒng)中一種新的自適應(yīng)均衡方法[J]. 電子與信息學(xué)報, 2006, 28(10): 1862-1865.
引用本文: 周亮, 邱玲, 朱近康. MIMO通信系統(tǒng)中一種新的自適應(yīng)均衡方法[J]. 電子與信息學(xué)報, 2006, 28(10): 1862-1865.
Zhou Liang, Qiu Ling, Zhu Jin-kang. A Novel Adaptive Equalization Algorithm for MIMO Communication System[J]. Journal of Electronics & Information Technology, 2006, 28(10): 1862-1865.
Citation: Zhou Liang, Qiu Ling, Zhu Jin-kang. A Novel Adaptive Equalization Algorithm for MIMO Communication System[J]. Journal of Electronics & Information Technology, 2006, 28(10): 1862-1865.

MIMO通信系統(tǒng)中一種新的自適應(yīng)均衡方法

A Novel Adaptive Equalization Algorithm for MIMO Communication System

  • 摘要: 該文提出了時變頻率選擇性衰落環(huán)境下多輸入多輸出(MIMO)通信系統(tǒng)中一種新的基于遞歸最小二乘(RLS)的自適應(yīng)干擾對消的判決反饋均衡方法(RLS-IC-DFE)。該方法將每個數(shù)據(jù)子流上的自適應(yīng)判決反饋均衡器等效為一個加長的新的均衡器,并把已解出的子流數(shù)據(jù)作為新的輸入?yún)?shù),應(yīng)用RLS算法自適應(yīng)調(diào)整新的均衡器參數(shù)。仿真結(jié)果表明,該文提出的自適應(yīng)干擾對消的判決反饋均衡器可以自適應(yīng)跟蹤信道變化,同時比已有的判決反饋均衡器(RLS-DFE)能提供更好的誤符號率(SER)性能。
  • Wolniansky P W, Foschini G J, Golden G D, Valenzuela R A. V-BLAST: An architecture for realizing very high data rates over the rich_scattering wireless channel. ISSSE, Pisa, Italy, 1998: 295-300.[2]Alamouti S M. A simple transmit diversity technique for wireless communications, IEEE Journal on Selected Areas in Communications, 1998, 16(8): 1451-1458.[3]Golden G D, Foschini G J, Valenzuela R A, Wolniansky P W. Detection algorithm and initial laboratory results using V-BLAST space-time communication architecture[J].Electron. Letters.1999, 35(1):14-16[4]Xu Zhu, Murch R D. Performance analysis of maximum likelihood detection for a MIMO wireless system[J].IEEE Trans. on Comm.2002, 50(2):187-191[5]Al-Dhahir N, Naguib A F, Calderbank A R. Finite-length MIMO decision feedback equalization for space-time block-codedsignals over multipath-fading channels[J].IEEE Trans. on Vehicular Technology.2001, 50(4):1176-1182[6]Lozano A, Papadias C. Layered space-time receivers for frequency-selective wireless channels[J].IEEE Trans. on Comm.2002, 50(1):65-73[7]Xu Zhu, Murch R D. Layered space-time equalization for wireless MIMO systems[J].IEEE Trans. on Wireless Communications.2003, 2(6):1189-1203[8]Simon Haykin. Adaptive Filter Theory, Fourth Edition, Englewood Cliffs, NJ: Prentice-Hall, 2001, Chapter 9.[9]Komninakis C, Fragouli C, Sayed A H, Wesel R D. Multi-input multi-output fading channel tracking and equalization using Kalman estimation[J].IEEE Trans. on Signal Processing.2002, 50(5):1065-1076[10]Raleigh G, Cioffi J M. Spatio-temporal coding for wireless communications[J].IEEE Trans. on Comm.1998, 46(3):357-366
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出版歷程
  • 收稿日期:  2005-02-02
  • 修回日期:  2005-07-11
  • 刊出日期:  2006-10-19

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