Novel Channel Estimation Method Based on Decision-Directed in OFDM

被引：1
|
作者：
卜祥元 [1 ]
张建康 [2 ]
杨静 [1 ]
机构：
[1] School of Information Science and Technology ,Beijing Institute of Technology
[2] School of Information Engineering,Zhengzhou University
来源：
Journal of Beijing Institute of Technology | 2009年 / 18卷 / 01期
关键词：
channel estimation; training symbols; decision-directed; maximum likelihood estimate;
D O I：
10.15918/j.jbit1004-0579.2009.01.015
中图分类号：
TN919.3 [数据传输技术];
学科分类号：
0810 ; 081001 ;
摘要：
Based on the analysis of decision-directed (DD) channel estimation by using training symbols, a novel DD channel estimation method is proposed for orthogonal frequency division multiplexing (OFDM) system. The proposed algorithm takes the impact of decision error into account, and calculates the impact to next symbol duration channel state information. Analysis shows that the error propagation can be effectively restrained and the channel variation is tracked well. Simulation results demonstrate that both the signal error rate (SER) and the normalized mean square error (NMSE) performance of the proposed method are better than the traditional DD (DD+LS) and the maximum likelihood estimate (DD+MLE) method.
引用
收藏
页码：65 / 69
页数：5
相关论文
共 50 条
  • [1] Novel channel estimation method based on decision-directed in OFDM
    Bu, Xiang-Yuan
    Zhang, Jian-Kang
    Yang, Jing
    [J]. Journal of Beijing Institute of Technology (English Edition), 2009, 18 (01): : 65 - 69
  • [2] Novel Decision-Directed Channel Estimation Method for TDS-OFDM System
    Yang, Fang
    Peng, Kewu
    Song, Jian
    Pan, Changyong
    Yang, Zhixing
    [J]. 2008 11TH IEEE SINGAPORE INTERNATIONAL CONFERENCE ON COMMUNICATION SYSTEMS (ICCS), VOLS 1-3, 2008, : 1096 - 1100
  • [3] Decision-directed channel estimation method for OFDM systems with high velocities
    Ran, JJ
    Grünheid, R
    Rohling, H
    Bolinth, E
    Kern, R
    [J]. 57TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, VTC 2003-SPRING, VOLS 1-4, PROCEEDINGS, 2003, : 2358 - 2361
  • [4] A Novel Decision-Directed Channel Estimator for OFDM Systems
    Zhang, Jiankang
    Chen, Enqing
    Mu, Xiaomin
    Yang, Shouyi
    [J]. ICSP: 2008 9TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, VOLS 1-5, PROCEEDINGS, 2008, : 1793 - 1796
  • [5] Simplified Decision-Directed Channel Estimation Method for OFDM System with Transmit Diversity
    Yang, Fang
    Peng, Kewu
    Wang, Jintao
    Song, Jian
    Yang, Zhixing
    [J]. 2009 IEEE VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, 2009, : 1844 - 1848
  • [6] Decision-directed Channel Estimation for MIMO-OFDM Systems
    Qiao, Xiaoqiang
    Zhao, Hangsheng
    Han, Zhigang
    Sun, Yun
    [J]. 2009 5TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-8, 2009, : 897 - +
  • [7] Smoothing techniques for decision-directed MIMO OFDM channel estimation
    Beinschob, P.
    Zoelzer, U.
    [J]. ADVANCES IN RADIO SCIENCE, 2011, 9 : 139 - 143
  • [8] Efficient Decision-Directed Channel Estimation for OFDM Systems with Transmit Diversity
    Wu, Kuo-Guan
    Wu, Jer-An
    [J]. IEEE COMMUNICATIONS LETTERS, 2011, 15 (07) : 740 - 742
  • [9] Decision-directed channel estimation for multi-user OFDM environments
    Münster, M
    Hanzo, L
    [J]. IEEE VTC 53RD VEHICULAR TECHNOLOGY CONFERENCE, SPRING 2001, VOLS 1-4, PROCEEDINGS, 2001, : 2417 - +
  • [10] Decision-directed channel estimation for supporting higher terminal velocities in OFDM based WLANs
    Kella, T
    [J]. GLOBECOM'03: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-7, 2003, : 1306 - 1310
12345