Time-varying Channel Estimation for OFDM Systems with Superimposed Training and Basis Expansion Model

被引：0

作者：

Zhang, Han ^{[1
]}

Gao, Shan ^{[1
]}

Zhong, Qinghua ^{[1
]}

Dai, Xianhua ^{[2
]}

机构：

[1] South China Normal Univ, Dept Phys & Telecommun Engn, Guangzhou, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, Sch Informat Sci & Technol, Guangzhou, Peoples R China

来源：

2011 7TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING (WICOM) | 2011年

关键词：

time-varying channel estimation; superimposed training; OFDM; basis expansion model;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

An approach of superimposed training (ST) aided time-varying (TV) channel estimation for Orthogonal Frequency Division Multiplexing (OFDM) systems is presented. By modeling the channel as complex exponential bases, channel estimation is adopted over multiple OFDM symbols by using a sequence of data-dependent ST signal. Simulations illustrate the proposed channel estimator achieves a satisfactory estimation performance under a wide range of Doppler shift.

引用

页数：3

共 7 条

[1] Optimal training design for linearly time-varying MlMO/OFDM channels modelled by a complex exponential basis expansion
Dai, X.
[J]. IET COMMUNICATIONS, 2007, 1 (05) : 945 - 953
[2] Channel estimation and symbol detection for block transmission using data-dependent superimposed training
Ghogho, M
McLernon, D
Alameda-Hernandez, E
Swami, A
[J]. IEEE SIGNAL PROCESSING LETTERS, 2005, 12 (03) : 226 - 229
[3] On the Power Allocation and System Capacity of OFDM Systems Using Superimposed Training Schemes
Huang, Wei-Chieh
Li, Chih-Peng
Li, Hsueh-Jyh
[J]. IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2009, 58 (04) : 1731 - 1740
[4] ICI mitigation for pilot-aided OFDM mobile systems
Mostofi, Y
Cox, DC
[J]. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2005, 4 (02) : 765 - 774
[5] On channel estimation using superimposed training and first-order statistics
Tugnait, JK
Luo, WL
[J]. IEEE COMMUNICATIONS LETTERS, 2003, 7 (09) : 413 - 415
[6] Superimposed-pilot-aided channel estimation for mobile OFDM
Yang, Q.
Kwak, K. S.
[J]. ELECTRONICS LETTERS, 2006, 42 (12) : 722 - 724
[7] Zhang H., 2009, P IEEE ICICS 2009, P1

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