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Modelling, analysis and performance improvement of an SRU’s access request queue in multi-channel V2I communications

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dc.contributor.author Fawaz, Wissam
dc.contributor.author Khabbaz, Maurice
dc.contributor.author Assi, Chadi
dc.contributor.author Hasna, Mazen
dc.contributor.author Ghrayeb, Ali
dc.date.accessioned 2016-06-03T09:08:55Z
dc.date.available 2016-06-03T09:08:55Z
dc.date.copyright 2015 en_US
dc.identifier.issn 1574-1192 en_US
dc.identifier.uri http://hdl.handle.net/10725/3939
dc.description.abstract This paper presents a concise yet comprehensive description of a multi-channel Vehicle-to-Infrastructure (V2I) communication system. Existing mathematical models for such a system overlook some of its essential behavioural characteristics such as the reneging, force-termination and ultimately blocking of service requests. A multi-server queueing model with First-In–First-Out (FIFO) service policy is proposed for the purpose of accurately capturing the dynamics of the above-mentioned communication system and evaluating its performance. Approximations were exploited as a mean to enhance this model’s mathematical tractability. Simulations are conducted in the context of a realistic scenario with the objective of validating the proposed approximate model, verifying its accuracy and characterizing the system’s performance in terms of several new metrics. The reported results indicate a cataclysmic access request blocking probability ranging from 66% to 85%. An Access Request Deadline-Aware (ARDA) service policy is then proposed to reduce the blocking probability and improve the system’s response time. Indeed ARDA achieved an improvement over FIFO of almost 70% in terms of the overall blocking probability and 22% to 66% in terms of the system’s response time. en_US
dc.language.iso en en_US
dc.title Modelling, analysis and performance improvement of an SRU’s access request queue in multi-channel V2I communications en_US
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SOE en_US
dc.author.idnumber 200602957 en_US
dc.author.department Electrical And Computer Engineering en_US
dc.description.embargo N/A en_US
dc.relation.journal Pervasive and Mobile Computing en_US
dc.journal.volume 21 en_US
dc.article.pages 92-102 en_US
dc.keywords Modelling en_US
dc.keywords Performance en_US
dc.keywords V21 en_US
dc.identifier.doi http://dx.doi.org/10.1016/j.pmcj.2015.02.007 en_US
dc.identifier.ctation Khabbaz, M., Assi, C., Hasna, M., Ghrayeb, A., & Fawaz, W. (2015). Modelling, analysis and performance improvement of an SRU’s access request queue in multi-channel V2I communications. Pervasive and Mobile Computing, 21, 92-102. en_US
dc.author.email wissam.fawaz@lau.edu.lb en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url http://www.sciencedirect.com/science/article/pii/S1574119215000619 en_US


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