A low-complexity equalization technique for OFDM system in time-variant multipath channels

被引：11
|
作者：
Li, GJ [1 ]
Yang, HW [1 ]
Cai, LY [1 ]
Gui, LN [1 ]
机构：
[1] Alcatel Shanghai Bell Co Ltd, Res & Innovat CTO Off, Shanghai, Peoples R China
来源：
2003 IEEE 58TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS1-5, PROCEEDINGS | 2003年
关键词：
D O I：
10.1109/VETECF.2003.1285977
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：
In this paper, an equalization technique with low computational complexity is proposed for time-variant multipath channel in OFDM system. Under the assumption that channel impulse response (CIR) varies linearly within one OFDM symbol, this technique utilizes the property of Toeplitz matrix and fast Fourier transform (FFT) matrix to obtain the inter-channel interference (ICI) terms in frequency domain with very low complexity, and Jacobi stationary iterative algorithm is proposed to compensate these ICI terms in manner of matrix.
引用
收藏
页码：2466 / 2470
页数：5
相关论文
共 50 条
  • [1] Novel estimation and equalization of time-variant channels for OFDM system
    Chen, Dong-Hua
    Qiu, Hong-Bing
    [J]. Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University, 2010, 37 (06): : 999 - 1004
  • [2] Low-complexity equalization of OFDM in doubly selective channels
    Schniter, P
    [J]. IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2004, 52 (04) : 1002 - 1011
  • [3] Improved Successive Detector for OFDM in Time-Variant Multipath Channels
    Li, Feng
    Zhu, Shihua
    Rong, Mei
    [J]. IEICE TRANSACTIONS ON COMMUNICATIONS, 2009, E92B (05) : 1892 - 1896
  • [4] Low-Complexity Linear Equalization for Block Transmission in Multipath Channels
    Shenoy, Shakti Prasad
    Negro, Francesco
    Ghauri, Irfan
    Slock, Dirk T. M.
    [J]. 2009 IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-5, 2009, : 538 - +
  • [5] Low-complexity time domain equalization of OFDM in highly time-selective channels
    Chang, Kapseok
    Han, Youngnam
    [J]. IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, 2006, E89A (06) : 1710 - 1712
  • [6] An equalization technique for orthogonal frequency-division multiplexing systems in time-variant multipath channels
    Jeon, WG
    Chang, KH
    Cho, YS
    [J]. IEEE TRANSACTIONS ON COMMUNICATIONS, 1999, 47 (01) : 27 - 32
  • [7] Joint channel estimation and equalization for fast time-variant multipath channels
    Gligorevic, S
    [J]. 13TH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOL 1-5, PROCEEDINGS: SAILING THE WAVES OF THE WIRELESS OCEANS, 2002, : 1127 - 1130
  • [8] Low-Complexity Block Turbo Equalization for OFDM Systems in Time-Varying Channels
    Fang, Kun
    Rugini, Luca
    Leus, Geert
    [J]. IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2008, 56 (11) : 5555 - 5566
  • [9] Low-complexity block turbo equalization for OFDM systems in time-varying channels
    Fang, Kun
    Leus, Geert
    [J]. 2007 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOL III, PTS 1-3, PROCEEDINGS, 2007, : 445 - +
  • [10] A low-complexity channel estimator for OFDM systems in multipath fading channels
    Zhu, A
    Lee, W
    [J]. 2004 IEEE 15TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-4, PROCEEDINGS, 2004, : 1978 - 1982
12345