Title :
Performance evaluation of channel estimation techniques in a multiple antenna OFDM system
Author :
Dowler, Alex ; Nix, Andrew
Author_Institution :
Centre for Commun. Res., Bristol Univ., UK
Abstract :
A number of pilot-based channel estimation techniques are investigated for a multiple antenna system using the zero-forcing algorithm. The techniques are tested in typical indoor and outdoor (vehicular) channels. Performance results are presented in terms of bit error rate, mean squared error and data throughput. It is found that different pilot strategies offer the best performance in each environment, and hence an adaptive system should be considered.
Keywords :
MIMO systems; OFDM modulation; channel estimation; error statistics; indoor radio; mean square error methods; mobile radio; multipath channels; BER; COFDM; MIMO; OFDM; adaptive system; bit error rate; channel estimation techniques; data throughput; indoor channels; mean squared error; multipath channel; multiple antenna system; outdoor channels; pilot-based channel estimation; vehicular channels; zero-forcing algorithm; Bit error rate; Channel estimation; Interpolation; MIMO; OFDM; Radio transmitters; Receiving antennas; Testing; Throughput; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th
Print_ISBN :
0-7803-7954-3
DOI :
10.1109/VETECF.2003.1285215
