Improvement of self-organizing time divison multiple access in vehicular ad-hoc networks

Vehicular ad-hoc network (VANET) is a subclass of mobile ad-hoc network (MANET) with the key difference of frequently changing mobility pattern and network topology. It can provide both vehicle-to-vehicle (V2V) and vehicle-toinfrastructure (V2I) communications thereby can greatly improve the safety...

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Main Author:	Arif, Ari Sabir
Format:	Thesis
Language:	English
Published:	2014
Subjects:	QA75 Electronic computers Computer science
Online Access:	http://eprints.utm.my/id/eprint/48039/25/AriSabirArifMFK2014.pdf
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spelling	my-utm-ep.480392017-08-16T04:30:14Z Improvement of self-organizing time divison multiple access in vehicular ad-hoc networks 2014-03 Arif, Ari Sabir QA75 Electronic computers. Computer science Vehicular ad-hoc network (VANET) is a subclass of mobile ad-hoc network (MANET) with the key difference of frequently changing mobility pattern and network topology. It can provide both vehicle-to-vehicle (V2V) and vehicle-toinfrastructure (V2I) communications thereby can greatly improve the safety and efficiency of road traffic. Media Access Control (MAC) is one of the key protocols for VANET in providing real-time services. Self-Organized Time Division Multiple Access (STDMA) is one of the MAC protocols for VANETs. The main problem of STDMA (MAC) protocol is delay. In this research, we proposed a scheduling algorithm to surmount this delay and improve the performance of STDMA MAC protocol, by allocating additional time slots for all nodes in the emergency service category. In the proposed algorithm we divide the available bandwidth between two different service classes: best effort and real time. There are two different counters, which count the number of allocated slots to users of different classes. The highway scenario is selected to model the vehicle traffic patterns. Simulation results show that for different number of nodes the proposed scheme has improved the delay by 23% and throughput by 4% compared to STDMA. For different values of speed it has shown 24% lower delay and 23% higher throughput than STDMA. In addition, result show that our proposed protocol outperforms the conventional one CSMA/CA in terms of delay and throughput. 2014-03 Thesis http://eprints.utm.my/id/eprint/48039/ http://eprints.utm.my/id/eprint/48039/25/AriSabirArifMFK2014.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Computing Faculty of Computing
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QA75 Electronic computers Computer science
spellingShingle	QA75 Electronic computers Computer science Arif, Ari Sabir Improvement of self-organizing time divison multiple access in vehicular ad-hoc networks
description	Vehicular ad-hoc network (VANET) is a subclass of mobile ad-hoc network (MANET) with the key difference of frequently changing mobility pattern and network topology. It can provide both vehicle-to-vehicle (V2V) and vehicle-toinfrastructure (V2I) communications thereby can greatly improve the safety and efficiency of road traffic. Media Access Control (MAC) is one of the key protocols for VANET in providing real-time services. Self-Organized Time Division Multiple Access (STDMA) is one of the MAC protocols for VANETs. The main problem of STDMA (MAC) protocol is delay. In this research, we proposed a scheduling algorithm to surmount this delay and improve the performance of STDMA MAC protocol, by allocating additional time slots for all nodes in the emergency service category. In the proposed algorithm we divide the available bandwidth between two different service classes: best effort and real time. There are two different counters, which count the number of allocated slots to users of different classes. The highway scenario is selected to model the vehicle traffic patterns. Simulation results show that for different number of nodes the proposed scheme has improved the delay by 23% and throughput by 4% compared to STDMA. For different values of speed it has shown 24% lower delay and 23% higher throughput than STDMA. In addition, result show that our proposed protocol outperforms the conventional one CSMA/CA in terms of delay and throughput.
format	Thesis
qualification_level	Master's degree
author	Arif, Ari Sabir
author_facet	Arif, Ari Sabir
author_sort	Arif, Ari Sabir
title	Improvement of self-organizing time divison multiple access in vehicular ad-hoc networks
title_short	Improvement of self-organizing time divison multiple access in vehicular ad-hoc networks
title_full	Improvement of self-organizing time divison multiple access in vehicular ad-hoc networks
title_fullStr	Improvement of self-organizing time divison multiple access in vehicular ad-hoc networks
title_full_unstemmed	Improvement of self-organizing time divison multiple access in vehicular ad-hoc networks
title_sort	improvement of self-organizing time divison multiple access in vehicular ad-hoc networks
granting_institution	Universiti Teknologi Malaysia, Faculty of Computing
granting_department	Faculty of Computing
publishDate	2014
url	http://eprints.utm.my/id/eprint/48039/25/AriSabirArifMFK2014.pdf
_version_	1747817292927860736

Improvement of self-organizing time divison multiple access in vehicular ad-hoc networks

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