Second-order statistics of 2D non isotropic mobile-to-mobile wireless channels
Date
2011
Authors
Samarasinghe, Talpawila Prasad
Lamahewa, Tharaka
Kennedy, Rodney
Abhayapala, Thushara
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IEEE Communications Society
Abstract
This paper derives closed form expressions for second order statistics of mobile-to-mobile wireless channels in non isotropic environments. Specifically, we consider Rice, Rayleigh and Nakagami fading channels in four different non isotropic scattering environments with Angle of Departure (AoD) and Angle of Arrival (AoA) distributions given by (i) separable Truncated Gaussian, (ii) separable von-Mises, (iii) Truncated Gaussian bivariate and (iv) Truncated Laplacian bivariate distributions. We have shown that the second order statistics, namely, the Level Crossing Rate (LCR) and the Average Fade Duration (AFD) in different fading channels can be expressed in terms of known scattering coefficients of the above angle of departure and arrival distributions. We have illustrated the usefulness of the results by plotting LCR and AFD against the channel correlation for various scattering scenarios.
Description
Keywords
Keywords: Angle of arrival; Average fade duration; Bivariate; Bivariate distribution; Channel correlation; Closed-form expression; Gaussians; Isotropic scattering; Laplacians; Level crossing rates; Nakagami fading channel; Rayleigh; Scattering co-efficient; Second
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Source
Proceedings of IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2011)
Type
Conference paper
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2037-12-31