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一種新的適用于多徑信道的基于LMK準(zhǔn)則的盲自適應(yīng)多用戶檢測及其收斂性分析

蔣笑冰,  薛強(qiáng),  馮玉珉

蔣笑冰, 薛強(qiáng), 馮玉珉. 一種新的適用于多徑信道的基于LMK準(zhǔn)則的盲自適應(yīng)多用戶檢測及其收斂性分析[J]. 電子與信息學(xué)報(bào), 2005, 27(3): 384-387.
引用本文: 蔣笑冰, 薛強(qiáng), 馮玉珉. 一種新的適用于多徑信道的基于LMK準(zhǔn)則的盲自適應(yīng)多用戶檢測及其收斂性分析[J]. 電子與信息學(xué)報(bào), 2005, 27(3): 384-387.
Jiang Xiao-bing, Xue Qiang, Feng Yu-min. A Novel Blind Multiuser Detection Based on LMK Criterion for Synchronous DS/CDMA System over Multipath Fading Channels and Its Convergence Analysis[J]. Journal of Electronics & Information Technology, 2005, 27(3): 384-387.
Citation: Jiang Xiao-bing, Xue Qiang, Feng Yu-min. A Novel Blind Multiuser Detection Based on LMK Criterion for Synchronous DS/CDMA System over Multipath Fading Channels and Its Convergence Analysis[J]. Journal of Electronics & Information Technology, 2005, 27(3): 384-387.

一種新的適用于多徑信道的基于LMK準(zhǔn)則的盲自適應(yīng)多用戶檢測及其收斂性分析

A Novel Blind Multiuser Detection Based on LMK Criterion for Synchronous DS/CDMA System over Multipath Fading Channels and Its Convergence Analysis

  • 摘要: 基于最小平均峰度(Least MeanKurtosis，LMK)準(zhǔn)則]，該文提出了一種適用于同步直擴(kuò)碼分多址(DS/CDMA)系統(tǒng)多徑慢衰落信道中的線性盲自適應(yīng)多用戶檢測算法。這種算法基于高階統(tǒng)計(jì)量(High Order Statistics，HOS)特性，算法復(fù)雜度相對(duì)較低。文中分析了算法在多徑信道中無噪聲情況下的收斂特性，指出在這種情況下，算法具有全局最小點(diǎn)，此時(shí)算法滿足解相關(guān)條件。仿真結(jié)果表明，文中給出的檢測器具有較強(qiáng)的多址干擾抑制性能。
    Abstract: In this paper, a new linear blind adaptive multiuser detection based on LMK. criterion is proposed for synchronous DS/CDMA system over multipath fading channels, The new algorithm bases on HOS(High Order Statistics) and reduces complexity remarkably. The convergence of this algorithm is analyzed over multipath fading channel in the noise-free environment. In this case, the algorithm has global minimum point. On global minimum point, the algorithm satisfies dccorrelating condition and can completely remove multiple-access interference. The simulation results show that the algorithm has good performance.
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  • Arasaratnam P, Zhu S, Constantinides A G. Block-Shannon multi-user constant modulus algorithm for use in multi-user CDMA environment[J].Electronics Letters.2003, 38(9):423-[2]Chambers J A, Tanrikulu O, Gonstantinides A G. Least-mean Kurtosis: A novel high order statistics based adaptive filtering algorithm[J].Electronics Letters.1994, 30(19):1574-[3]Tanrikulu O, Gonstantinides A G. The LMK algorithm with time-varying forgetting factor for adaptive system identification in additive output noise[J].IEEE ICASSP96, USA.1996, 3:1850-[4]徐長江,酆廣增.基于高階累積量的盲自適應(yīng)多用戶檢測.電子學(xué)報(bào),2000,28(7):48-50.[5]Tang Zuqing, Yang Zhixing, Yao Yan. Blind multiuser detector based on LMK criterion[J].Electronics Letters.1999, 35(4):267-[6]Wang X, Poor H V. Blind multiuser detection: a subspace approach[J].IEEE Trans. on Information Theory.1998, 44(2):677-
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出版歷程
  • 收稿日期:  2003-11-28
  • 修回日期:  2003-03-23
  • 刊出日期:  2005-03-19

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