Title
An Exact Solution for the Level-Crossing Rate of Shadow Fading Processes Modelled by Using the Sum-of-Sinusoids Principle
Abstract
The focus of this paper is on the higher order statistics of spatial simulation models for shadowing processes. Such processes are generally assumed to follow the lognormal distribution. The proposed spatial simulation model is derived from a non-realizable lognormal reference model with given correlation properties by using Rice's sum-of-sinusoids. Both exact and approximate expressions are presented for the level-crossing rate (LCR) and the average duration of fades (ADF) of the simulation model. It is pointed out that Gudmundson's correlation model results in an infinite LCR. To avoid this problem, two alternative spatial correlation models are proposed. Illustrative examples of the dynamic behavior of shadow fading processes are presented for all three types of correlation models. Emphasis will be placed on two realistic propagation scenarios capturing the shadowing effects in suburban and urban areas.
Year
DOI
Venue
2010
10.1007/s11277-008-9512-3
Wireless Personal Communications
Keywords
Field
DocType
Mobile fading channels,Shadowing effects,Spatial shadowing processes,Lognormal processes,Level-crossing rate
Exact solutions in general relativity,Applied mathematics,Spatial correlation,Reference model,Level crossing,Expression (mathematics),Computer science,Higher-order statistics,Real-time computing,Simulation modeling,Statistics,Log-normal distribution
Journal
Volume
Issue
ISSN
52
1
0929-6212
Citations 
PageRank 
References 
13
0.94
5
Authors
2
Name
Order
Citations
PageRank
Matthias Pätzold151975.89
Kun Yang24712.60