A comparative study of two shadow fading models in ultrawideband and other wireless systems

Ali Abdi; Mostafa Kaveh

doi:10.1109/TWC.2011.031611.100309

A comparative study of two shadow fading models in ultrawideband and other wireless systems

Ali Abdi, Mostafa Kaveh

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The distribution of the local average power at a mobile is usually considered to be lognormal in terrestrial and satellite channels. However, the mathematical form of the lognormal distribution is not convenient for analytic calculations. In this paper, we show the utility of the gamma distribution for shadow fading, in both terrestrial and satellite channels, using empirical data. Furthermore, we show that the application of the gamma model of shadow fading results in closed-form and mathematically-tractable solutions for key system performance measures such as the average symbol error rate of different modulations with a variety of diversity combining techniques.

Original language	English (US)
Article number	5739088
Pages (from-to)	1428-1434
Number of pages	7
Journal	IEEE Transactions on Wireless Communications
Volume	10
Issue number	5
DOIs	https://doi.org/10.1109/TWC.2011.031611.100309
State	Published - May 2011

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

Keywords

Shadow fading
fading channels
gamma distribution
large-scale fading
lognormal distribution
performance analysis
shadowing

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10.1109/TWC.2011.031611.100309

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title = "A comparative study of two shadow fading models in ultrawideband and other wireless systems",

abstract = "The distribution of the local average power at a mobile is usually considered to be lognormal in terrestrial and satellite channels. However, the mathematical form of the lognormal distribution is not convenient for analytic calculations. In this paper, we show the utility of the gamma distribution for shadow fading, in both terrestrial and satellite channels, using empirical data. Furthermore, we show that the application of the gamma model of shadow fading results in closed-form and mathematically-tractable solutions for key system performance measures such as the average symbol error rate of different modulations with a variety of diversity combining techniques.",

keywords = "Shadow fading, fading channels, gamma distribution, large-scale fading, lognormal distribution, performance analysis, shadowing",

author = "Ali Abdi and Mostafa Kaveh",

note = "Funding Information: Manuscript received March 2, 2010; revised October 1, 2010; accepted January 11, 2011. The associate editor coordinating the review of this paper and approving it for publication was G. Durgin. This work was presented at the IEEE Vehicular Technology Conference, Houston, TX, 1999, and Atlantic City, NJ, 2001. It was supported in part by the NSF, under the Wireless Initiative Program, Grant #9979443. A. Abdi is with the Dept. of Elec. and Comp. Eng., New Jersey Institute of Technology, Newark, NJ 07102, USA (ali.abdi@njit.edu). M. Kaveh is with the Dept. of Elec. and Comp. Eng., University of Minnesota, Minneapolis, Minnesota 55455, USA. Digital Object Identifier 10.1109/TWC.2011.031611.100309",

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AB - The distribution of the local average power at a mobile is usually considered to be lognormal in terrestrial and satellite channels. However, the mathematical form of the lognormal distribution is not convenient for analytic calculations. In this paper, we show the utility of the gamma distribution for shadow fading, in both terrestrial and satellite channels, using empirical data. Furthermore, we show that the application of the gamma model of shadow fading results in closed-form and mathematically-tractable solutions for key system performance measures such as the average symbol error rate of different modulations with a variety of diversity combining techniques.

KW - Shadow fading

KW - fading channels

KW - gamma distribution

KW - large-scale fading

KW - lognormal distribution

KW - performance analysis

KW - shadowing

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A comparative study of two shadow fading models in ultrawideband and other wireless systems

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Keywords

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