Title :
Optimum Combining in Rician/Rayleigh Fading Environment with Channel Estimation Errors
Author :
Basri, Amir Ali ; Lim, Teng Joon
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont.
Abstract :
This paper examines the impact of channel estimation errors on the distribution of the signal-to-interference ratio (SIR) at the output of the optimum combiner for space diversity reception in the uplink of wireless systems with multiple interferers. We generalize the results of prior work obtained for Rayleigh fading channels to a Rician/Rayleigh fading environment where the desired user is subject to Rician fading while the interferers experience Rayleigh fading. Using multivariate statistical analysis, an exact closed-form expression is derived for the probability density function (PDF) of the output SIR. The PDF expression is a useful tool to derive the analytical expressions of some other important measures of performance such as the outage probability and the average bit error probability. The theoretical result is verified by Monte Carlo simulations
Keywords :
Monte Carlo methods; Rayleigh channels; Rician channels; channel estimation; diversity reception; multivariable systems; probability; radiofrequency interference; Monte Carlo simulation; PDF; Rician-Rayleigh fading environment; channel estimation; closed-form expression; multiple interference; multivariate statistical analysis; probability density function; space diversity reception; wireless system; Channel estimation; Closed-form solution; Diversity reception; Error probability; Fading; Performance analysis; Probability density function; Rayleigh channels; Rician channels; Statistical analysis;
Conference_Titel :
Communications, 2006 23rd Biennial Symposium on
Conference_Location :
Kigston, Ont.
Print_ISBN :
0-7803-9528-X
DOI :
10.1109/BSC.2006.1644621
