NDLI: Performance Analysis of Relay Site Planning Over Composite Fading/Shadowing Channels With Cochannel Interference

Content Provider	IEEE Xplore Digital Library
Author	Bulakci, O. Bou Saleh, A. Hamalainen, J. Redana, S.
Copyright Year	1967
Abstract	The performance of relay deployments depends significantly on the capacity of the wireless relay link between a relay node (RN) and its serving base station (BS). Exploiting the deployment flexibility of RNs, relay site planning (RSP) can be utilized to overcome the limitations of the relay link. In particular, RSP is carried out by selecting RN deployment locations from a discrete set of alternatives considering the signal-to-interference-plus-noise ratio (SINR) on the relay link as the selection criterion. In this paper, we present an analytical framework for RSP that can be used for planning and dimensioning of two-hop cellular relay networks operating over composite fading/shadowing channels in the presence of cochannel interference. Nakagami–lognormal distribution is used to model the relay link, whereas the access link between a mobile terminal (MT) and its serving RN is modeled by Rician–lognormal distribution. As these composite models do not have closed-form distribution functions, we utilize mixture gamma (MG) distribution to accurately approximate them. Further, the total cochannel interference in the considered multicellular system is approximated using the moment-generating function (MGF) matching method. Accordingly, we present closed-form expressions for the distributions of relay-link SINR, link rates, and end-to-end rate. In addition, RSP is shown to effectively decrease the amount of fading (AoF) and, thus, mitigate the detrimental effects of composite fading/shadowing. Thorough results reveal significant performance improvements, which justify the use of RSP in cellular relay networks.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	1692
Ending Page	1706
Page Count	15
File Size	1383352
File Format	PDF
ISSN	00189545
Volume Number	62
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Signal to noise ratio Approximation methods Shadow mapping Interference Rayleigh channels relay deployments Cochannel interference composite fading/shadowing fourth-generation (4G) wireless networks location selection, network planning
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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