Title :
MAP symbol estimation on frequency-flat Rayleigh fading channels via a Bayesian EM algorithm
Author :
Chiavaccini, Eugenio ; Vitetta, Giorgio M.
Author_Institution :
Dept. of Inf. Eng., Modena Univ., Italy
fDate :
11/1/2001 12:00:00 AM
Abstract :
In this paper, an expectation-maximization (EM) technique for maximum a posteriori estimation is employed to devise novel soft-in soft-out algorithms for symbol detection over frequency-flat Rayleigh fading channels. An application of these algorithms to iterative decoding of coded PSK signals is proposed and some performance results are illustrated
Keywords :
Bayes methods; Rayleigh channels; iterative decoding; maximum likelihood decoding; maximum likelihood estimation; phase shift keying; Bayesian EM algorithm; MAP symbol estimation; coded PSK signals; expectation-maximization technique; frequency-flat Rayleigh fading channels; iterative decoding; maximum a posteriori estimation; soft-in soft-out algorithms; symbol detection; Bayesian methods; Chirp modulation; Fading; Frequency estimation; Iterative algorithms; Iterative decoding; Maximum a posteriori estimation; Maximum likelihood estimation; Phase shift keying; Vectors;
Journal_Title :
Communications, IEEE Transactions on
