Advanced Search
Volume 30 Issue 1
Jan.  2011
Turn off MathJax
Article Contents
Zhao Fa-yong, Feng Guang-zeng. Blind Adaptive Receiver in Asynchronous CDMA Systems Based on Pre-processing Recursive Least Squares Constant Modulus Algorithm[J]. Journal of Electronics & Information Technology, 2008, 30(1): 77-80. doi: 10.3724/SP.J.1146.2006.00778
Citation: Zhao Fa-yong, Feng Guang-zeng. Blind Adaptive Receiver in Asynchronous CDMA Systems Based on Pre-processing Recursive Least Squares Constant Modulus Algorithm[J]. Journal of Electronics & Information Technology, 2008, 30(1): 77-80. doi: 10.3724/SP.J.1146.2006.00778

Blind Adaptive Receiver in Asynchronous CDMA Systems Based on Pre-processing Recursive Least Squares Constant Modulus Algorithm

doi: 10.3724/SP.J.1146.2006.00778
  • Received Date: 2006-06-06
  • Rev Recd Date: 2006-12-29
  • Publish Date: 2008-01-19
  • This paper proposes a blind adaptive receive technique in asynchronous multipath CDMA systems based on the Pre-Processing Recursive Least Squares Constant Modulus Algorithm (PP-RLSCMA) .The received signals are adaptively pre-processed first ,and analysis of the complexity and stability of the pre-processor is provided. The pre-processor enhances the performance of CMA_based receiver by partly suppressing the interference and noise and the proposed method is only dependent on parameter of maximum multipath length. Because of slow convergence rate of statistic descend constant modulus, the paper presents a blind adaptive receiver based on fast (RLSCMA). Simulation indicates that the proposed algorithm has a better performance of BER and convergence compared with LCMMV and LCCMA.
  • loading
  • Madhow U and Hong M L. MMSE interference suppression for direct-sequence-spread-spectrum CDMA[J].IEEE Trans. on Communications.1994, 42(12):3178-3188[2]Tsatsanis M K. Inverse filtering criteria for CDMA systems[J].EEE Trans. on Signal Processing.1997, 45(1):102-112[3]Xu Zhengyuan and Tsatsanis M K.Blind adaptive algorithms for minimum variance CDMA receivers[J].IEEE Trans. on Communications.2001, 49(1):180-194[4]Elnashar A and Elnoubi S. A robust linearly constrained CMA for adaptive blind multiuser detection. IEEE Communications Society / WCNC 2005, New Orleans, 2005: 233-238.[5]Gelli G, Paura L, and Verde F. A two-stage CMA-based receiver for blind joint equalization and multiuser detection in high data-rate DS-CDMA systems[J].IEEE Trans. on Wireless Communications.2004, 3(4):1209-1223[6]Gelli G and Verde F. Two-stage interference-resistant adaptive periodically time-varying CMA blind equalization[J].IEEE Trans. on Signal Processing.2002, 50(3):662-672[7]Zeng H H, Tong L , and Johnson C R. Relationships between the constant modulus and wiener receivers[J].IEEE Trans. on Information Theory.1998, 44(4):1523-1538[8]Chen Yuxin, Tho Le-Ngoc, and Champagne B, et al.. Recursive least squares constant modulus algorithm for blind adaptive array[J].IEEE Trans. on Signal Processing.2004, 52(5):1452-1456[9]Papadias C B and Slock D T M. Fractionally spaced equalization of linear polyphase channels and related blind techniques based on multichannel linear prediction[J].IEEE Trans. on Signal Processing.1999, 47(3):641-653[10]Haykin S. Adaptive Filter Theory. Third Edition, Upper Saddle River, NJ: Prentice-Hall International, 1996: 370-400.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (3221) PDF downloads(845) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return