Title :
Channel estimation for STBC-OFDM systems
Author :
Teran, D.M. ; Jimenez, Rafael Pedro Torres
Author_Institution :
Dept. de Ingenieria de Communicaciones, Cantabria Univ., Santander, Spain
Abstract :
This work presents low complexity channel estimators to be used in space-time block codes for orthogonal frequency division multiplexing systems. The proposed estimators, which are frequency based, permit the use of real or complex constellation modulation techniques and allow to send the channel information without interrupting the space-time coding-decoding process, only requiring of linear processing at the receiver. Simulation results show that the proposed estimators achieve considerable gain over existing least square estimators.
Keywords :
OFDM modulation; block codes; channel estimation; decoding; least mean squares methods; space-time codes; transmitting antennas; STBC-OFDM system; channel estimation; channel information; constellation modulation technique; decoding process; least square estimator; linear processing; orthogonal frequency division multiplexing system; receiver; space-time block code; Additive noise; Antenna feeds; Block codes; Channel estimation; Frequency estimation; Least squares approximation; OFDM; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2004 IEEE 5th Workshop on
Print_ISBN :
0-7803-8337-0
DOI :
10.1109/SPAWC.2004.1439249
