Low complexity channel estimation for space-time coded wideband OFDM systems

被引：49
作者：
Gong, Y [1 ]
Ben Letaief, K [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2003年 / 2卷 / 05期
关键词：
channel estimation; orthogonal-frequency division multiplexing (OFDM); space-time block coding; space-time (ST) coding; wireless communications;
D O I：
10.1109/TWC.2003.816797
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 letter, channel estimation for space-time coded orthogonal-frequency division multiplexing (OFDM) systems is considered. By assuming that the channel frequency response is quasi-static over two consecutive OFDM symbols, we develop channel parameter estimators based on the use of space-time block coded (STBC) training blocks. Using an STBC training pattern, a low-rank Wiener filter-based channel estimator with a significant complexity reduction is proposed. A simplified approach for the optimal low-rank estimator is also proposed to further reduce the estimator complexity while retaining an accurate frequency domain channel estimation. Numerical results are provided to demonstrate the performance of the proposed low complexity channel estimators for space-time trellis coded OFDM systems.
引用
收藏
页码：876 / 882
页数：7
相关论文
共 50 条
  • [1] On channel estimation for space-time trellis coded OFDM systems
    Lee, SM
    Choi, HJ
    IEICE TRANSACTIONS ON COMMUNICATIONS, 2002, E85B (11) : 2353 - 2361
  • [2] Low complexity implementation of Alamouti space-time coded OFDM transmitters
    Yang, J
    Cheun, K
    IEEE COMMUNICATIONS LETTERS, 2004, 8 (04) : 229 - 231
  • [3] Semiblind channel estimation and equalization for MIMO space-time coded OFDM
    Zeng, YH
    Lam, WH
    Ng, TS
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2006, 53 (02) : 463 - 474
  • [4] Pilot-Symbol-Assisted Channel Estimation for Space-Time Coded OFDM Systems
    King F. Lee
    Douglas B. Williams
    EURASIP Journal on Advances in Signal Processing, 2002
  • [5] Pilot-symbol-assisted channel estimation for space-time coded OFDM systems
    Lee, KF
    Williams, DB
    EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING, 2002, 2002 (05) : 507 - 516
  • [6] Comparison of channel frequency and impulse response estimation for space-time coded OFDM systems
    Harjula, I
    Mämmelä, A
    Li, ZH
    IEEE 56TH VEHICULAR TECHNOLOGY CONFERENCE, VTC FALL 2002, VOLS 1-4, PROCEEDINGS, 2002, : 2081 - 2085
  • [7] Frequency-domain Channel Estimation and Tracking Schemes for Space-time Coded OFDM Systems
    Guo, Hui
    Wang, Lihong
    2007 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-15, 2007, : 369 - 372
  • [8] Finite-alphabet and decision-feedback based channel estimation for space-time coded OFDM systems
    School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China
    Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology, 2008, 30 (02): : 451 - 454
  • [9] A Low-Complexity Time-Domain MMSE Channel Estimator for Space-Time/Frequency Block-Coded OFDM Systems
    Habib Şenol
    HakanAli Çırpan
    Erdal Panayırcı
    Mesut Çevik
    EURASIP Journal on Advances in Signal Processing, 2006
  • [10] RLS channel estimation with adaptive forgetting factor in space-time coded MIMO-OFDM systems
    Liang Y.-M.
    Luo H.-W.
    Huang J.-G.
    J Zhejiang Univ: Sci, 2006, 4 (507-515): : 507 - 515
12345