EM-based Channel Estimation for MIMO OFDM System

被引：4
|
作者：
Hu, Gaoping [1 ]
Li, Dong [1 ]
机构：
[1] Commun Univ China, Dept Informat Engn, Beijing, Peoples R China
来源：
NSWCTC 2009: INTERNATIONAL CONFERENCE ON NETWORKS SECURITY, WIRELESS COMMUNICATIONS AND TRUSTED COMPUTING, VOL 1, PROCEEDINGS | 2009年
关键词：
mimo ofdm; channel estimation; expectation maximization;
D O I：
10.1109/NSWCTC.2009.117
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a low complexity adaptive EM-based channel estimation algorithm is proposed for Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems in slow time-varying frequency selective environment. The proposed algorithm was an adaptive channel estimation technique based on an expectation maximization (EM) algorithm for space-time block coded (STBC) MIMO OFDM systems. Simulation results show that in slow fading environment there was no degradation in normalized mean square error (MSE) as we increased the number of users. Comparing the Recursive Least-Squares (RLS) algorithm, the proposed algorithm exploits the structure of Alamouti STBC codes to reduce computational complexity.
引用
收藏
页码：159 / 162
页数：4
相关论文
共 50 条
  • [1] EM-based channel estimation for OFDM
    Ma, XQ
    Kobayashi, H
    Schwartz, SC
    2001 IEEE PACIFIC RIM CONFERENCE ON COMMUNICATIONS, COMPUTERS AND SIGNAL PROCESSING, VOLS I AND II, CONFERENCE PROCEEDINGS, 2001, : 449 - 452
  • [2] EM-based channel estimation algorithms for OFDM
    Ma, XQ
    Kobayashi, H
    Schwartz, SC
    EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING, 2004, 2004 (10) : 1460 - 1477
  • [3] EM-Based Channel Estimation Algorithms for OFDM
    Xiaoqiang Ma
    Hisashi Kobayashi
    Stuart C. Schwartz
    EURASIP Journal on Advances in Signal Processing, 2004
  • [4] EM-based low complexity channel estimation for OFDM system
    Nam, Seung-Hyun
    Yoon, Jae-Seon
    Song, Hyoung-Kyu
    IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, 2008, 54 (02) : 425 - 430
  • [5] EM-BASED SEMI-BLIND MIMO-OFDM CHANNEL ESTIMATION
    Ladaycia, Abdelhamid
    Belouchrani, Adel
    Abed-Meraim, Karim
    Mokraoui, Anissa
    2018 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), 2018, : 3899 - 3903
  • [6] EM-based MAP channel estimation algorithm for MIMO-OFDM systems
    Xu, Peng
    Wang, Jin-Kuan
    Qi, Feng
    Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics, 2010, 32 (01): : 27 - 30
  • [7] Novel EM-based channel estimation algorithm for MIMO-OFDM systems
    Huo, Wenjun
    Wang, Zhigang
    Li, Shentang
    2007 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, VOLS 1-5, 2007, : 2150 - 2153
  • [8] EM-based channel estimation algorithms for OFDM
    Ma, X. (xma@princeton.edu), 1600, Hindawi Publishing Corporation (2004):
  • [9] EM-based channel estimation for space time block coded MIMO OFDM systems
    Karkhanechi, Haideh M.
    Levy, Bernard C.
    2006 IEEE WORKSHOP ON SIGNAL PROCESSING SYSTEMS DESIGN AND IMPLEMENTATION, 2006, : 177 - 181
  • [10] EM-BASED H-INF CHANNEL ESTIMATION IN MIMO-OFDM SYSTEMS
    Xu, Peng
    Wang, Jinkuan
    Qi, Feng
    2012 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP), 2012, : 3189 - 3192
12345