Title :
Channel tracking and decoding in space-frequency coded OFDM systems over dispersive channels
Author :
Yanming, Xue ; Guangchuan, Su
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., China
fDate :
31 Aug.-4 Sept. 2004
Abstract :
This paper proposes a novel decoding scheme for OFDM, with multi-antenna systems, which uses space-frequency block coding (SFBC), over time-frequency selective channels. We employ Kalman filtering for MIMO channel matrix tracking in order to enable SFBC-OFDM decoding with diversity gains. Simulation results confirm that the proposed scheme exhibits robustness to time-frequency selectivity.
Keywords :
Kalman filters; MIMO systems; OFDM modulation; antenna arrays; block codes; channel coding; decoding; dispersive channels; diversity reception; filtering theory; matrix algebra; time-frequency analysis; Kalman filtering; MIMO channel matrix; channel decoding; channel tracking; dispersive channel; multiantenna system; space-frequency block coding; space-frequency coded OFDM system; time-frequency selective channel; Block codes; Decoding; Dispersion; Diversity methods; Filtering; Kalman filters; MIMO; OFDM; Robustness; Time frequency analysis;
Conference_Titel :
Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on
Print_ISBN :
0-7803-8406-7
DOI :
10.1109/ICOSP.2004.1442147
