In this paper we study the quality of service (QoS) and energy performance of the carrier sense multiple access with collision avoidance (CSMA/CA) based 802.11p scheme, and our previously proposed modified version of packet reservation multiple access (M-PRMA) scheme for a vehicle-to-roadside (V2R) network in a motorway environment. The simulation results illustrate the deficiency of the 802.11p protocol in providing adequate QoS to support real-time communication for varying vehicular traffic loads expected on the motorway. The significant amount of energy required for carrier sensing in the 802.11p is realised when compared to the low listening energy expenditure levels of the M-PRMA protocol. We compare both protocols under realistic (experimental) vehicular flow in a motorway and show that power saving up to 12 x can be achieved if a time division multiple access (TDMA) approach such as M-PRMA is used or if the CSMA/CA listening power is reduced.
ReuseItems deposited in White Rose Research Online are protected by copyright, with all rights reserved unless indicated otherwise. They may be downloaded and/or printed for private study, or other acts as permitted by national copyright laws. The publisher or other rights holders may allow further reproduction and re-use of the full text version. This is indicated by the licence information on the White Rose Research Online record for the item.
TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request.
Accepted ManuscriptReliability and quality of service of an off-grid wind powered roadside unit in a motorway vehicular environment George A. Audu, Samya Bhattacharya, Adnan Muhtar, Bilal Qazi, Jaafar M.H. Elmirghani PII:S2214-2096 (16) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. with significant improvement in the quality of service.
1
Reliability and Quality of Service of an
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.