Title :
Performance Comparison of Two Transmit Diversity Schemes with Imperfect Multipath Channel Estimation
Author :
Hoteit, Wajih ; Shayan, Yousef R. ; Elhakeem, Ahmed K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que.
Abstract :
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
Keywords :
channel estimation; diversity reception; error statistics; multipath channels; BER; MRC schemes; bit error rate; maximal ratio combining; multipath channel estimation; transmit diversity schemes; Bit error rate; Channel estimation; Computer errors; Degradation; Diversity reception; Error analysis; Estimation error; Intersymbol interference; Multipath channels; Performance analysis; bit error rate; imperfect multipath channel estimation; maximal ratio combining; simple transmit diversity;
Conference_Titel :
Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
1-4244-0038-4
Electronic_ISBN :
1-4244-0038-4
DOI :
10.1109/CCECE.2006.277619
