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A Semianalytical PDF of Downlink SINR for Femtocell Networks

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http://www.hindawi.com/journals/wcn/2010/256370.abs.html
Original languageEnglish
Article number256370
Number of pages9
JournalEURASIP Journal on Wireless Communications and Networking
Volume2010
DOIs
Publication statusPublished - 1 Feb 2010

Abstract

This paper presents a derivation of the probability density function (PDF) of the signal-to-interference and noise ratio (SINR) for the downlink of a cell in multicellular networks. The mathematical model considers uncoordinated locations and transmission powers of base stations (BSs) which reflect accurately the deployment of randomly located femtocells in an indoor environment. The derivation is semianalytical, in that the PDF is obtained by analysis and can be easily calculated by employing standard numerical methods. Thus, it obviates the need for time-consuming simulation efforts. The derivation of the PDF takes into account practical propagation models including shadow fading. The effect of background noise is also considered. Numerical experiments are performed assuming various environments and deployment scenarios to examine the performance of femtocell networks. The results are compared with Monte Carlo simulations for verification purposes and show good agreement.

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