Title :
Diversity evaluation based on correlation properties of Rician/Rayleigh fading signals subject to additive Gaussian noise
Author :
Eggers, Patrick C F
Author_Institution :
Center for PersonKommunikation, Aalborg Univ., Denmark
Abstract :
When measuring antenna diversity branch envelope signals, uncorrelated noise-like signals are corrupting the desired signals (described by Rician/Rayleigh fading processes). This causes a higher degree of envelope decorrelation between the total antenna branch signals. This has a high importance in system design when estimating the diversity gain and the resulting link quality and cell layout. An analysis is presented, showing the total power cross-correlation being a 2nd order function of the signal-to-noise ratio (SNR) and Rician K-factor. For the Rayleigh fading case the total auto-correlation function is presented, which is useful in estimating the necessary spacings in a space diversity system
Keywords :
Gaussian noise; Rayleigh channels; Rician channels; cellular radio; correlation methods; diversity reception; electromagnetic wave propagation; fading; land mobile radio; radio links; radiowave propagation; 2nd order function; Rician K-factor; Rician/Rayleigh fading signals; SNR; additive Gaussian noise; antenna diversity branch envelope signals; cell layout; correlation properties; diversity evaluation; diversity gain estimation; envelope decorrelation; link quality; local scattering; signal-to-noise ratio; space diversity system; spacings estimation; system design; total antenna branch signals; total auto-correlation function; total power cross-correlation; uncorrelated noise-like signals; Antenna measurements; Decorrelation; Diversity methods; Noise measurement; Rayleigh channels; Rician channels; Signal analysis; Signal processing; Signal to noise ratio; System analysis and design;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-3871-5
DOI :
10.1109/PIMRC.1997.627049
