Time-varying Channel Estimation for MIMO/OFDM Systems Using Superimposed Training

被引：0
|
作者：
Zhang, Han [1 ]
Dai, Xianhua [1 ]
Li, Dong [1 ]
机构：
[1] Sun Yat Sen Univ, Dept Elect Engn, Guangzhou, Guangdong, Peoples R China
来源：
2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31 | 2008年
关键词：
channel estimation; MIMO/OFDM; superimposed training;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This paper deals with the problem of time-varying (TV) channel estimation for multiple-input multiple-output/orthogonal frequency-division multiplexing (MIMO/OFDM) systems based on superimposed training (94 The time-varying coefficients of the W channel are firstly modeled by truncated discrete Fourier bases, and then optimally estimated both in one OFDM symbols and over multiple OFDM symbols by judiciously designing the superimposed pilots. In addition an Iterative symbol detection based channel estimation scheme with analytical performance analysis, is provided to mitigate the interference due to the unknown information sequences (thus to further improve channel estimation performance as well as SER levels). Simulations confirm that the proposed estimator achieves a considerable gain In estimating TV channels, and exhibits a nearly indistinguishable symbol error rate performance from die OFDM systems of frequency-division multiplexed trainings.
引用
收藏
页码：620 / 625
页数：6
相关论文
共 50 条
  • [41] On superimposed training for MIMO channel estimation and symbol detection
    He, Shuangchi
    Tugnait, Jitendra K.
    Meng, Xiaohong
    IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2007, 55 (06) : 3007 - 3021
  • [42] DOUBLY-SELECTIVE MIMO-OFDM CHANNEL IDENTIFICATION USING SUPERIMPOSED TRAINING
    Meng Weixiao
    Zhao Junyi
    Jia Shilou
    2009 IEEE 22ND CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING, VOLS 1 AND 2, 2009, : 294 - 297
  • [43] Time-Varying Distributed MIMO-OFDM Channel Subblock Estimation Based on Slepian Basis
    Zhou, Xiaoping
    Fang, Yong
    Wang, Min
    2010 IEEE 10TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS (ICSP2010), VOLS I-III, 2010, : 1612 - 1615
  • [44] Improved Downlink Channel Estimation in Time-Varying FDD Massive MIMO Systems
    Daei, Sajad
    Skoglund, Mikael
    Fodor, Gabor
    2024 IEEE 25TH INTERNATIONAL WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS, SPAWC 2024, 2024, : 571 - 575
  • [45] BEM Channel Estimation for OFDM System in Fast Time-Varying Channel
    Li, Fei
    Ding, Zhizhong
    Wang, Yu
    Li, Jie
    Liu, Zhi
    IEICE TRANSACTIONS ON COMMUNICATIONS, 2017, E100B (08) : 1462 - 1471
  • [46] Channel Estimation Method for Time-Varying Channel Based on Periodic PN Sequence for OFDM Systems
    Duan, Peng
    He, MingYi
    Xue, MinBiao
    ICIEA: 2009 4TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS, VOLS 1-6, 2009, : 1787 - +
  • [47] Channel Estimation for OFDM Systems Based on RLS and Superimposed Training Sequences
    Zhan, Jinjing
    Wang, Jun
    Liu, Shouyin
    Chong, Jong-Wha
    2007 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-15, 2007, : 37 - +
  • [48] Channel estimation based on pilot tones for OFDM on time-varying channel
    Hao, Lihong
    Ding, Zhengjian
    Dong, Ronghui
    2005 INTERNATIONAL SYMPOSIUM ON COMPUTER SCIENCE AND TECHNOLOGY, PROCEEDINGS, 2005, : 262 - 268
  • [49] Superimposed Training for Data Detection and Channel Estimation in OFDM Systems without Cyclic Prefix
    Huang, Wei-Chieh
    Yang, Yi-Syun
    Li, Chih-Peng
    Li, Hsueh-Jyh
    2009 IEEE 70TH VEHICULAR TECHNOLOGY CONFERENCE FALL, VOLS 1-4, 2009, : 577 - +
  • [50] Modified Kalman channel estimation algorithm for OFDM systems in fast time-varying environment
    College of Information and Communications Engineering, Harbin Engineering University, Harbin 150001, China
    Harbin Gongcheng Daxue Xuebao, 2007, 11 (1268-1272):
12345