Variable step-size LMS algorithm for estimation of time-varying and frequency-selective channels

被引：6
|
作者：
Arraes Filho, AM [1 ]
Pinto, EL [1 ]
Galdino, JF [1 ]
机构：
[1] IME, Dept Engn Eletr, Lab Comunicacoes Digitais, BR-22290270 Rio De Janeiro, Brazil
来源：
ELECTRONICS LETTERS | 2004年 / 40卷 / 20期
关键词：
D O I：
10.1049/el:20046363
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new strategy is proposed for deriving a variable step-size least mean squares (VSS-LMS) algorithm suited for the estimation of time-varying and frequency-selective communications channels modelled as wide sense stationary channels-uncorrelated scattering (WSS-US). The variable step size is obtained by minimising the analytical expression of the mean square weight estimation error as a function of time. Computer simulation results are presented which show that the new VSS-LMS algorithm so obtained produces performance gains in relation to the conventional LMS algorithm and for some channel models may also outperform the recursive least squares algorithm.
引用
收藏
页码：1312 / 1313
页数：2
相关论文
共 50 条
  • [1] Tracking time-varying channels with adaptive step-size transform domain LMS algorithm
    Bilcu, Radu Ciprian
    Kuosmanen, Pauli
    Egiazarian, Karen
    Recent Advances in Intelligent Systems and Signal Processing, 2003, : 104 - 109
  • [2] LMS adaptive filter with optimum step-size for tracking time-varying channels
    Bilcu, RC
    Kuosmanen, P
    Egiazarian, K
    ISPA 2003: PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON IMAGE AND SIGNAL PROCESSING AND ANALYSIS, PTS 1 AND 2, 2003, : 883 - 887
  • [3] OFDM channel estimation Algorithm based on Frequency-Selective and Time-Varying Channels
    Tang Yan-bo
    Ge Wan-cheng
    2008 IEEE INTERNATIONAL SYMPOSIUM ON KNOWLEDGE ACQUISITION AND MODELING WORKSHOP PROCEEDINGS, VOLS 1 AND 2, 2008, : 204 - +
  • [4] A variable step-size selective partial update LMS algorithm
    Mayyas, Khaled
    DIGITAL SIGNAL PROCESSING, 2013, 23 (01) : 75 - 85
  • [5] A Variable Step-Size Diffusion LMS Algorithm for Distributed Estimation
    Lee, Han-Sol
    Kim, Seong-Eun
    Lee, Jae-Woo
    Song, Woo-Jin
    IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2015, 63 (07) : 1808 - 1820
  • [6] A TIME-VARYING STEP-SIZE NORMALIZED LMS ALGORITHM FOR ADAPTIVE ECHO CANCELER STRUCTURES
    MIYATAKE, MN
    MEANA, HP
    DERIVERA, LN
    SANCHEZ, FC
    GARCIA, JCS
    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, 1995, E78A (02) : 254 - 258
  • [7] Blind channel estimation for time-varying frequency-selective fading channels
    Shibata, K
    Yagi, T
    Sakai, T
    Nakagaki, A
    IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, 2000, E83A (10) : 1904 - 1913
  • [8] An approach to variable step-size LMS algorithm
    Krstajic, B
    Stankovic, LJ
    Uskokovic, Z
    ELECTRONICS LETTERS, 2002, 38 (16) : 927 - 928
  • [9] A Variable Step-Size Leaky LMS Algorithm
    Zhao, Sihai
    Xu, Jiangye
    Zhang, Yuyan
    WIRELESS COMMUNICATIONS & MOBILE COMPUTING, 2021, 2021
  • [10] Performance of the LMS algorithm on the estimation of time-varying channels
    Galdino, JF
    Pinto, EL
    de Alencar, MS
    2002 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5, CONFERENCE PROCEEDINGS, 2002, : 94 - 98
12345