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Effect of Channel Estimation Errors on the Performance of MIMO-OFDM Systems in Correlated Fading Channels

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3 Author(s)
Jaeho Chung ; Network Infra Lab., Korea Telecom ; Se-Jun Park ; Seong-Choon Lee

In this paper, we investigate the effect of inaccurate channel estimation on the bit error rate (BER) performance of the convolutionally coded MIMO-OFDM systems with multilevel quadrature amplitude modulation (M-QAM, M=16, 64) and different diversity orders, particularly in spatially correlated fading channels. It is shown that, in a highly correlated fading channel, the 16-QAM system employing increased diversity order is remarkably more sensitive to the channel estimation errors than the same system but with the 64-QAM. On the other hand, when the fading correlation of the channel is low, the 16-QAM system with antenna diversity appears to become more robust to the channel estimation errors than the 64-QAM system with the same antenna diversity in terms of the BER performance

Published in:
Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on

Date of Conference: May 2006

Page(s):
478 - 481
E-ISBN :
1-4244-0038-4
Print ISBN:
1-4244-0038-4
INSPEC Accession Number:
9376476
Conference Location :
Ottawa, Ont.
Digital Object Identifier :
10.1109/CCECE.2006.277555
Product Type:
Conference Publications

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