Modelling, analysis and performance improvement of an SRU's access request queue in multi-channel V2I communications
المؤلف | Khabbaz M. |
المؤلف | Assi C. |
المؤلف | Hasna , Mazen |
المؤلف | Ghrayeb A. |
المؤلف | Fawaz W. |
تاريخ الإتاحة | 2022-04-26T11:06:48Z |
تاريخ النشر | 2015 |
اسم المنشور | Pervasive and Mobile Computing |
المصدر | Scopus |
المعرّف | http://dx.doi.org/10.1016/j.pmcj.2015.02.007 |
الملخص | 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. |
اللغة | en |
الناشر | Elsevier B.V. |
الموضوع | Blocking probability Indium compounds Models Queueing theory Response time (computer systems) First in first outs Mathematical tractability Performance Performance improvements Realistic scenario System's performance V2I communications Vehicle to infrastructure (V2I) Vehicle to vehicle communications |
النوع | Conference Paper |
الصفحات | 92-102 |
رقم المجلد | 21 |
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