Title :
A statistical model of mobile signal reception
Author_Institution :
Dept. of Space Sci. & Technol., Istanbul Tech. Univ.
fDate :
27 Sep-1 Oct 1994
Abstract :
A new model is proposed to predict the mobile signal statistics for systems where diversity is implemented at the base station. Based on the model, analytical expressions for envelope correlation of the signal received at the mobile are obtained as a function of the mean distance of active scatterers from the mobile as well as the frequency and space separations used at the base. Unlike previous reception models of concern, this model assumes, based on experimental evidence, a statistical dependency between time delay and the angle of arrival of a received wave. In view of the behaviour of the correlation coefficient for varying mean effective distance, it is suggested that widespread scattering regions can be characterized by attributing an exponential density to the distance of scatterers whereas a Rayleigh density would describe scatterers confined to small areas better
Keywords :
correlation methods; diversity reception; electromagnetic wave scattering; exponential distribution; land mobile radio; probability; radio reception; radiowave propagation; statistical analysis; Rayleigh density; active scatterers; angle of arrival; base station; correlation coefficient; envelope correlation; exponential density; frequency separations; mean distance; mobile signal reception; mobile signal statistics; probability distribution functions; radiowave propagation; received wave; reception models; scattering regions; space separations; statistical model; time delay; Antennas and propagation; Base stations; Frequency diversity; Light scattering; Mobile antennas; Predictive models; Rayleigh scattering; Receiving antennas; Space technology; Transmitting antennas;
Conference_Titel :
Universal Personal Communications, 1994. Record., 1994 Third Annual International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-1823-4
DOI :
10.1109/ICUPC.1994.383032
