TY - JOUR
T1 - A comparative study of two shadow fading models in ultrawideband and other wireless systems
AU - Abdi, Ali
AU - Kaveh, Mostafa
N1 - 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 ([email protected]). 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
PY - 2011/5
Y1 - 2011/5
N2 - 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.
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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U2 - 10.1109/TWC.2011.031611.100309
DO - 10.1109/TWC.2011.031611.100309
M3 - Article
AN - SCOPUS:79957663688
SN - 1536-1276
VL - 10
SP - 1428
EP - 1434
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 5
M1 - 5739088
ER -