Improved connectivity in geographic routing protocols using delay-tolerant networks scheme in vehicular ad hoc networks

Vehicular Ad hoc Networks (VANET) used to build wireless networks between vehicles (V2V), and between vehicles to infrastructure (V2I) are a subclass of Mobile Ad hoc Networks (MANET). VANETs introduce a variety of applications to enhance the safety and create a comfortable driving environment for d...

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主要作者:	Karimi, Ramin
格式:	Thesis
语言:	English
出版:	2013
主题:	TK7885-7895 Computer engineer Computer hardware
在线阅读:	http://eprints.utm.my/id/eprint/43964/5/RaminKarimiPFSKSM2013.pdf
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spelling	my-utm-ep.439642017-06-21T07:36:44Z Improved connectivity in geographic routing protocols using delay-tolerant networks scheme in vehicular ad hoc networks 2013-10 Karimi, Ramin TK7885-7895 Computer engineer. Computer hardware Vehicular Ad hoc Networks (VANET) used to build wireless networks between vehicles (V2V), and between vehicles to infrastructure (V2I) are a subclass of Mobile Ad hoc Networks (MANET). VANETs introduce a variety of applications to enhance the safety and create a comfortable driving environment for drivers. Connectivity in VANET is a fundamental operation that allows a vehicle to construct a source-todestination but is problematic due to the rapidly changing topologies and high speed mobility of the vehicles involved. This study presents a Predictive Geographic Routing Protocol (PGRP) to improve connectivity with predict greedy forwarding which could handle a recovery strategy for local maximum environment. In PGRP, every vehicle gives a weight to its neighbors according to the direction and location of the vehicle. Besides that, PGRP is capable of predicting the location of every vehicle in the interval time of hello packet based on the acceleration of the vehicle before forwarding the packets based on location after a short interval. An improved PGRP known as Predictive Geographic Routing Protocol with Delay-Tolerant Network (PGRP+DTN) would be used whenever a network disconnection occurs. A buffer can be used for every vehicle and each packet could be stored when a network is disconnected. To simulate the PGRP and PGRP+DTN, an integrated simulation NS2.35 based model and Simulator of Urban Mobility (SUMO) were used to generate a realistic traffic situation. The simulation results show that PGRP outperformed GPSR and GPCR in terms of packet delivery ratio, end-to-end delay, and average hops for improve connectivity between every two nodes. PGRP+DTN also outperformed Geopps, GeoDTN+NAV, and VADD in terms of packet delivery ratio, end to end delay, average hops for improve connectivity between every two nodes whenever they want to exit from DTN. The research has proven that the problems of connectivity in VANET can be resolved by using the proposed protocols. 2013-10 Thesis http://eprints.utm.my/id/eprint/43964/ http://eprints.utm.my/id/eprint/43964/5/RaminKarimiPFSKSM2013.pdf application/pdf en public phd doctoral Universiti Teknologi Malaysia, Faculty of Computing Faculty of Computing
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK7885-7895 Computer engineer Computer hardware
spellingShingle	TK7885-7895 Computer engineer Computer hardware Karimi, Ramin Improved connectivity in geographic routing protocols using delay-tolerant networks scheme in vehicular ad hoc networks
description	Vehicular Ad hoc Networks (VANET) used to build wireless networks between vehicles (V2V), and between vehicles to infrastructure (V2I) are a subclass of Mobile Ad hoc Networks (MANET). VANETs introduce a variety of applications to enhance the safety and create a comfortable driving environment for drivers. Connectivity in VANET is a fundamental operation that allows a vehicle to construct a source-todestination but is problematic due to the rapidly changing topologies and high speed mobility of the vehicles involved. This study presents a Predictive Geographic Routing Protocol (PGRP) to improve connectivity with predict greedy forwarding which could handle a recovery strategy for local maximum environment. In PGRP, every vehicle gives a weight to its neighbors according to the direction and location of the vehicle. Besides that, PGRP is capable of predicting the location of every vehicle in the interval time of hello packet based on the acceleration of the vehicle before forwarding the packets based on location after a short interval. An improved PGRP known as Predictive Geographic Routing Protocol with Delay-Tolerant Network (PGRP+DTN) would be used whenever a network disconnection occurs. A buffer can be used for every vehicle and each packet could be stored when a network is disconnected. To simulate the PGRP and PGRP+DTN, an integrated simulation NS2.35 based model and Simulator of Urban Mobility (SUMO) were used to generate a realistic traffic situation. The simulation results show that PGRP outperformed GPSR and GPCR in terms of packet delivery ratio, end-to-end delay, and average hops for improve connectivity between every two nodes. PGRP+DTN also outperformed Geopps, GeoDTN+NAV, and VADD in terms of packet delivery ratio, end to end delay, average hops for improve connectivity between every two nodes whenever they want to exit from DTN. The research has proven that the problems of connectivity in VANET can be resolved by using the proposed protocols.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Karimi, Ramin
author_facet	Karimi, Ramin
author_sort	Karimi, Ramin
title	Improved connectivity in geographic routing protocols using delay-tolerant networks scheme in vehicular ad hoc networks
title_short	Improved connectivity in geographic routing protocols using delay-tolerant networks scheme in vehicular ad hoc networks
title_full	Improved connectivity in geographic routing protocols using delay-tolerant networks scheme in vehicular ad hoc networks
title_fullStr	Improved connectivity in geographic routing protocols using delay-tolerant networks scheme in vehicular ad hoc networks
title_full_unstemmed	Improved connectivity in geographic routing protocols using delay-tolerant networks scheme in vehicular ad hoc networks
title_sort	improved connectivity in geographic routing protocols using delay-tolerant networks scheme in vehicular ad hoc networks
granting_institution	Universiti Teknologi Malaysia, Faculty of Computing
granting_department	Faculty of Computing
publishDate	2013
url	http://eprints.utm.my/id/eprint/43964/5/RaminKarimiPFSKSM2013.pdf
_version_	1747817124414357504

Improved connectivity in geographic routing protocols using delay-tolerant networks scheme in vehicular ad hoc networks

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