DocumentCode
1154916
Title
Simple Closed-Form Approximation to Ricean Sum Distributions
Author
López-Salcedo, José A.
Author_Institution
Signal Process. for Commun. & Navig., Univ. Autonoma de Barcelona, Barcelona
Volume
16
Issue
3
fYear
2009
fDate
3/1/2009 12:00:00 AM
Firstpage
153
Lastpage
155
Abstract
This letter focuses on the approximation of Ricean sum distributions of L independent random variables. Although no closed-form expression is available for these exact distributions, a simple but accurate closed-form approximation is proposed. The expression is based on the Central Limit Theorem (CLT) for which an appropriate correction term is added. The result is a rather tight fit with the exact distribution for a wide range of input values and Ricean K-factors.
Keywords
approximation theory; statistics; Ricean K-factors; Ricean sum distributions; central limit theorem; closed-form approximation; exact distribution; independent random variables; Closed-form solution; Diversity reception; Government; Nakagami distribution; Probability density function; Random variables; Rayleigh scattering; Satellite navigation systems; Signal processing; Statistical distributions; Approximation methods; Rayleigh distribution; Ricean distribution; sum distribution;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/LSP.2008.2012223
Filename
4781943
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