Title :
Some results on channel estimation and detection for space-time OFDM systems
Author :
Xie, Yongzhe ; Georghiades, Costas N.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
We present results on multipath channel estimation and detection for space-time coded systems used in conjunction with orthogonal frequency-division multiplexing (OFDM). An expectation-maximization (EM) based algorithm is introduced and is shown to be more robust to multipath channel delay profile variations and can be implemented more efficiently compared to a recently proposed alternative algorithm at similar or better performance
Keywords :
OFDM modulation; channel coding; diversity reception; modulation coding; multipath channels; parameter estimation; OFDM systems; delay profile variations; expectation-maximization algorithm; multipath channel detection; multipath channel estimation; orthogonal frequency-division multiplexing; space-time coded systems; Channel estimation; Decoding; Delay; Fading; Frequency division multiplexing; Multipath channels; OFDM; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Information Theory Workshop, 2001. Proceedings. 2001 IEEE
Conference_Location :
Cairns, Qld.
Print_ISBN :
0-7803-7119-4
DOI :
10.1109/ITW.2001.955156
