Title :
Analysis of a two-branch maximal ratio and selection diversity system with unequal SNRs and correlated inputs for a Rayleigh fading channel
Author :
Dietze, Kai ; Dietrich, Carl B., Jr. ; Stutzman, Warren L.
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
4/1/2002 12:00:00 AM
Abstract :
An analytical expression for the probability density function of the signal-to-noise ratio (SNR) at the output of a two-branch maximal ratio and selection diversity system is given. The two branches are assumed to be Rayleigh fading, correlated, as well as of unequal average SNRs. Measurements of the cumulative distribution functions after selection and maximal ratio combining were made in Rayleigh fading channels and compared with the analytical results. Also presented are the exact analytical average probabilities of symbol error for coherent binary phase-shift keying and coherent quaternary phase-shift keying before and after two-branch maximal ratio combining for a slow and flat fading correlated Rayleigh channel
Keywords :
Rayleigh channels; UHF radio propagation; correlation methods; diversity reception; error statistics; indoor radio; noise; quadrature phase shift keying; PDF; UHF; average symbol error probability; coherent binary phase-shift keying; coherent quaternary phase-shift keying; cumulative distribution functions; flat fading correlated Rayleigh channel; indoor nonLOS Environment; probability density function; selection diversity system; signal-to-noise ratio; slow fading correlated Rayleigh channel; two-branch maximal ratio combining; two-branch maximal ratio diversity system; unequal average SNR; Binary phase shift keying; Bit error rate; Distribution functions; Diversity reception; Fading; Performance analysis; Phase shift keying; Probability density function; Rayleigh channels; Signal to noise ratio;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/7693.994821
