Optimal Channel Estimation for MIMO/OFDM Systems in Time-varying Wireless Channels

被引：0
|
作者：
Zhang, Han [1 ]
Dai, Xianhua [1 ]
Li, Dong [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Inform Sci & Tech, Depart Elect Engn, Guangzhou 510275, Guangdong, Peoples R China
来源：
2008 INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS PROCEEDINGS, VOLS 1 AND 2: VOL 1: COMMUNICATION THEORY AND SYSTEM | 2008年
关键词：
D O I：
暂无
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：
We address the problem of time-varying (TV) channel estimation for MIMO/OFDM systems. Firstly, the TV channel is modeled by truncated discrete Fourier bases (DFB) and covers the approximation frames of multiple OFDM symbols. Then, a two-step approach with analytical performance are adopted where in the first step the TV channel is optimally estimated following an minimum mean square error (MMSE) sense in one OFDM symbol. In the second step of the two-step approach, the channel estimates (derived in 1(st) step) are further enhance over multiple OFDM symbols by using a novel weighted average approach. Simulation confirms that the proposed approach significantly outperforms the conventional TV channel estimators.
引用
收藏
页码：332 / 335
页数：4
相关论文
共 50 条
  • [1] Time-varying channel estimation for MIMO OFDM systems
    Hu, D
    Yang, LX
    He, ZY
    PROCEEDINGS OF THE 2004 INTERNATIONAL SYMPOSIUM ON INTELLIGENT MULTIMEDIA, VIDEO AND SPEECH PROCESSING, 2004, : 93 - 96
  • [2] Time-varying Channel Estimation for MIMO OFDM Systems
    Lu Zhen
    Ge JianHua
    2007 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-15, 2007, : 385 - +
  • [3] Channel Estimation Method for MIMO-OFDM Systems over Time-Varying Channels
    Chen He
    Li Zhao-xun
    2010 INTERNATIONAL CONFERENCE ON COMMUNICATION AND VEHICULAR TECHNOLOGY (ICCVT 2010), VOL I, 2010, : 121 - 124
  • [4] Time-varying Channel Estimation For MIMO-OFDM Systems
    Oenen, Erol
    Akan, Aydin
    2008 IEEE 16TH SIGNAL PROCESSING, COMMUNICATION AND APPLICATIONS CONFERENCE, VOLS 1 AND 2, 2008, : 776 - 779
  • [5] Sparse Channel Estimation for Massive MIMO-OFDM Systems Over Time-Varying Channels
    Qin, Qibo
    Gui, Lin
    Gong, Bo
    Luo, Sheng
    IEEE ACCESS, 2018, 6 : 33740 - 33751
  • [6] Pilot assisted channel estimation for MIMO-OFDM systems in time-varying fading channels
    Liu, CH
    Kuo, C
    International Conference on Computing, Communications and Control Technologies, Vol 3, Proceedings, 2004, : 286 - 290
  • [7] Adaptive channel estimation for OFDM systems in time-varying non-stationary wireless channels
    Zeng, Jianqiang
    Minn, Hlaing
    2007 IEEE SARNOFF SYMPOSIUM, 2007, : 304 - 308
  • [8] Kalman tracking of time-varying channels in wireless MIMO-OFDM systems
    Schafhuber, D
    Matz, G
    Hlawatsch, F
    CONFERENCE RECORD OF THE THIRTY-SEVENTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS, VOLS 1 AND 2, 2003, : 1261 - 1265
  • [9] A Channel Estimation Technique for OFDM Systems in Dispersive Time-Varying Channels
    Du, Zheng
    Song, Xuegui
    Cheng, Julian
    Beaulieu, Norman C.
    2009 11TH CANADIAN WORKSHOP ON INFORMATION THEORY, 2009, : 173 - 176
  • [10] Equalization and channel estimation for OFDM systems in time-varying multipath channels
    Kuo, C
    Chang, JF
    2004 IEEE 15TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-4, PROCEEDINGS, 2004, : 474 - 478
12345