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Performance Comparison of Two Transmit Diversity Schemes with Imperfect Multipath Channel Estimation

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3 Author(s)
Hoteit, W. ; Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que. ; Shayan, Y.R. ; Elhakeem, A.K.

An analysis and comparison are presented into the bit error rate (BER) degradations of simple transmit diversity (STD) and maximal ratio combining (MRC) schemes due to multipath channel estimation errors. The receiver in each scheme employs an equalizer to reduce the ISI in the received signal. BER performance curves are obtained based on the derived SNR at the output of the equalizer for each system. Results show that the degradation in the STD scheme exceeds 8 dB compared to MRC scheme to achieve a BER of 10-2 with 10% channel estimation error. The performance deterioration of the STD scheme increases quite rapidly compared to the degradation in the MRC performance when the channel estimation error and multipath components are large

Published in:

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

Date of Conference:

May 2006