DocumentCode :
2762374
Title :
A Novel Method of Channel Estimation in Broadband MIMO-OFDM Systems
Author :
Hui-ying, Jiao ; Jian-ping, An ; Xiang-yuan, Bu ; Hua, Wang
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol.
fYear :
2007
fDate :
11-15 March 2007
Firstpage :
836
Lastpage :
840
Abstract :
Channel estimation is critical in designing broadband multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) systems, a parametric channel estimation method based on least square (LS) criteria is proposed in this paper, and the MSE performance using optimal training pilots is also given here, which proves this estimation method can improve the estimation precision greatly in sparse channel. Since such method needs the multi-path time delays information of the channel, the probabilistic data association (PDA) method was employed to estimate the multi-path time delays. Simulation results show that both the bit error rate (BER) and the mean square error (MSE) performance of the proposed method are better than the traditional LS channel estimation method.
Keywords :
MIMO communication; OFDM modulation; channel estimation; least mean squares methods; multipath channels; broadband MIMO-OFDM systems; least square criteria; mean square error; multipath time delay information; multiple input multiple output system; optimal training; orthogonal frequency division multiplexing systems; parametric channel estimation method; probabilistic data association method; sparse channel; Baseband; Bit error rate; Channel estimation; Communications Society; Delay effects; Delay estimation; Frequency estimation; Least squares approximation; MIMO; OFDM;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Networking Conference, 2007.WCNC 2007. IEEE
Conference_Location :
Kowloon
ISSN :
1525-3511
Print_ISBN :
1-4244-0658-7
Electronic_ISBN :
1525-3511
Type :
conf
DOI :
10.1109/WCNC.2007.159
Filename :
4224404
Link To Document :
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