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dc.contributor.authorAfzal, Humaira*
dc.contributor.authorAwan, Irfan U.*
dc.contributor.authorMufti, Muhammad R.*
dc.contributor.authorSheriff, Ray E.*
dc.date.accessioned2016-09-21T15:35:46Z
dc.date.available2016-09-21T15:35:46Z
dc.date.issued2015-02
dc.identifier.citationAfzal H, Awan IU, Mufti MR et al (2015) Modeling of initial contention window size for successful initial ranging process in IEEE 802.22 WRAN cell. Simulation Modelling Practice and Theory. 51: 135-148.
dc.identifier.urihttp://hdl.handle.net/10454/9110
dc.descriptionNo
dc.description.abstractAvoiding collision among contending customer premise equipments (CPEs) attempting to associate with a base station (BS) in a wireless regional area network (WRAN) is a challenging issue. The collision probability is highly dependent upon the size of the initial contention window and the number of contending CPEs. To reduce the collision probability among CPEs in order to start the ranging process in an IEEE 802.22 network, the BS needs to adjust the initial contention window size. This paper provides an analytical framework to estimate the ranging request collision probability depending upon the size of the initial contention window and the number of CPEs attempting to join the IEEE WRAN cell. The accuracy of the estimated curve is analyzed for various numbers of contention CPEs on the basis of the relative errors. The numerical results confirm that the approximation works reasonably well for finding the ranging request collision probability for any number of contention CPEs at a particular value of initial contention window size. Moreover, this approximation provides the threshold size for a contention window to start the initial ranging process for any number of CPEs in an IEEE 802.22 network. (C) 2014 Elsevier B.V. All rights reserved.
dc.relation.isreferencedbyhttp://dx.doi.org/10.1016/j.simpat.2014.11.007
dc.subjectBase station; BS
dc.subject; Customer premise equipment; CPE
dc.subject; Medium access control; MAC
dc.subject; Cognitive radio; CR
dc.subject; Wireless regional area network; WRAN
dc.subject; Ranging request collision probability
dc.subject; Cognitive radio networks
dc.subject; Simulator
dc.subject; Protocol
dc.subject; Module
dc.titleModeling of initial contention window size for successful initial ranging process in IEEE 802.22 WRAN cell
dc.status.refereedYes
dc.date.Accepted2014-11-28
dc.date.application2014-12-20
dc.typeArticle
dc.type.versionNo full-text available in the repository


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