DocumentCode :
3408716
Title :
Wireless Channels that Exhibit "Worse than Rayleigh" Fading: Analytical and Measurement Results
Author :
Sen, I. ; Matolak, D.W. ; Xiong, W.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Ohio Univ., Athens, OH
fYear :
2006
fDate :
23-25 Oct. 2006
Firstpage :
1
Lastpage :
7
Abstract :
We describe several disparate practical settings in which cases of severe, or "worse than Rayleigh, "fading have been encountered. To explain this behavior, we present two physical models. The first model employs a statistically non-stationary random process that switches between two distributions, akin to the multi-state models proposed for land mobile satellite channels. The other model we propose is a multiplicative model of two small scale fading processes. We also describe the analytical pdf for such a multiplicative model using two Weibull random variables as the underlying small scale fading distributions. Measured data is used to corroborate these models, and our computer simulations confirm the ability to replicate the statistics of these severe fading processes. These proposed models can be used by researchers investigating communication system designs in severe fading environments
Keywords :
Rayleigh channels; land mobile radio; mobile satellite communication; random processes; Rayleigh fading channel; Weibull random variables; land mobile satellite channel; multistate model; statistically nonstationary random process; wireless channel; Delay; Indoor environments; Nakagami distribution; Radio frequency; Rayleigh channels; Satellites; Shape measurement; Statistical distributions; Weibull distribution; Weibull fading channels;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Military Communications Conference, 2006. MILCOM 2006. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
1-4244-0617-X
Electronic_ISBN :
1-4244-0618-8
Type :
conf
DOI :
10.1109/MILCOM.2006.302519
Filename :
4086703
Link To Document :
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