Title :
Maximum likelihood estimation of local average SNR in Rician fading channels
Author :
Beaulieu, Norman C. ; Chen, Yunfei
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
fDate :
3/1/2005 12:00:00 AM
Abstract :
A maximum likelihood estimator for the local average signal-to-noise ratio in a slowly fading Rician channel is proposed. The probability density function of the estimator is derived and the mean, the variance and the mean square error of the estimator are obtained. The performance of the estimator is examined. Numerical results show the asymptotic optimality of the estimator.
Keywords :
Rician channels; maximum likelihood estimation; mean square error methods; optimisation; probability; asymptotic optimality; local average SNR; maximum likelihood estimation; maximum likelihood estimator; mean square error; performance; probability density function; signal-to-noise ratio; slowly fading Rician channel; variance; AWGN; Additive white noise; Bit error rate; Fading; Gaussian noise; Maximum likelihood estimation; Mean square error methods; Signal to noise ratio; System performance; Wireless communication;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2005.03016
