Title :
Space-time decoding with imperfect channel estimation
Author :
Tarrico, G. ; Biglieri, Ezio
Author_Institution :
Dipartimento di Elettronica, Politecnico di Torino, Italy
Abstract :
Under the assumption of a frequency-flat slow Rayleigh fading channel with multiple transmit and receive antennas, we examine the effects on system performance of imperfect estimation of the channel parameters when the receiver either assumes that the estimate is perfect or uses a proper maximum-likelihood decision metric. An algorithm for the recursive calculation of the maximum-likelihood decision metric is developed for application to trellis space-time codes.
Keywords :
MIMO systems; Rayleigh channels; Viterbi decoding; antenna arrays; channel estimation; matrix algebra; maximum likelihood estimation; receiving antennas; recursive functions; space-time codes; transmitting antennas; trellis codes; frequency-flat slow Rayleigh fading channel; maximum-likelihood decision metric; multiple receive antennas; multiple transmit antennas; space-time decoding; trellis space-time codes; Channel estimation; Energy measurement; Fading; Frequency estimation; MIMO; Maximum likelihood decoding; Maximum likelihood estimation; Receiving antennas; Space time codes; Time measurement;
Conference_Titel :
Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on
Print_ISBN :
0-7803-8292-7
DOI :
10.1109/ISSPIT.2003.1341120
