NDLI: Approximation for a Sum of <emphasis emphasistype=smcaps>on-off</emphasis> Lognormal Processes With Wireless Applications

Content Provider	IEEE Xplore Digital Library
Author	Fischione, C. Graziosi, F. Santucci, F.
Copyright Year	1972
Abstract	In this paper, a lognormal approximation is proposed for the sum of lognormal processes weighted by binary processes. The analytical approach moves from the method early proposed by Wilkinson for approximating first-order statistics of a sum of lognormal components, and extends to incorporate second-order statistics and the presence of both time-correlated random binary weights and cross-correlated lognormal components in moments' matching. Since the sum of weighted lognormal processes models the signal-to-interference-plus-noise ratio (SINR) of wireless systems, the method can be applied to evaluate in an effective and accurate way the outage occurrence rate and outage duration for different wireless systems of practical interest. In a frequency-reuse-based cellular system, the method is applied for various propagation scenarios, characterized by different shadowing correlation decay distances and correlations among shadowing components. A further case of relevant interest is related to power-controlled wideband wireless systems, where the random weights are binary random variables denoting the activity status of each interfering source. Finally, simulation results are used to confirm the validity of the analysis.
Starting Page	1984
Ending Page	1993
Page Count	10
File Size	311475
File Format	PDF
ISSN	00906778
Volume Number	55
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Statistical analysis Signal to noise ratio Statistical distributions Shadow mapping Wideband Fading Statistics Performance analysis Diversity reception power-controlled wideband wireless systems Frequency-reuse-based radio cellular systems level crossing analysis lognormal distributions
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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