Please use this identifier to cite or link to this item: http://localhost:80/xmlui/handle/123456789/1103
Title: 3-D Spatial Spread Quantifiers for Multipath Fading Wireless Channels
Authors: Nawaz, Syed Junaid
Khan, Noor M.
Keywords: COMSATS
Multipath channels
fading
angle-of-arrival
Gaussian
shape factors
standard deviation
Issue Date: 12-Jul-2016
Publisher: IEEE
Abstract: This letter proposes a novel generalized method to quantify the angular dispersion of radiated energy in realistic 3-D space. Based on the first three coefficients of the 2-D Fourier transform, simple mathematical expressions are derived to independently or jointly quantify the angular dispersion of energy in a reduced 2-D or realistic 3-D space, respectively. The proposed quantifiers include mean direction of arrival, circular variance, true standard deviation, angular spreads, angular constriction, and direction of maximum fading. The proposed quantifiers are helpful in establishing an appropriate mechanism to measure the angular dispersion in 3-D space. These quantifiers provide results in radians with true physical meaning unlike their counterparts in the literature. Moreover, an analysis on the impact of distribution truncation/distortion on the degree of accuracy in measuring the angular dispersion is presented which signifies the importance of true angular spread quantification. The proposed quantifiers can thus be considered as an appropriate goodness-of-fit criterion in the characterization of spatial statistics of multipath fading channels.
URI: http://142.54.178.187:9060/xmlui/handle/123456789/1103
ISSN: 2162-2345
Appears in Collections:Journals

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