An efficient up-link load reduction model based on clustering in vanets

Vehicular Ad Hoc Networks (VANETs) enable communication between vehicles to avoid the accident. Cluster is a technique in VANETs used to group vehicles. The aim of this thesis is to mitigate uplink load at Base-Stations (BSs) resulted from the following: first, increased number of vehicles in the ur...

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Main Author: Abbas Al-Sallami, Ali Hashim
Format: Thesis
Language:English
English
English
Published: 2019
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spelling my-uthm-ep.502021-06-22T03:23:29Z An efficient up-link load reduction model based on clustering in vanets 2019-09 Abbas Al-Sallami, Ali Hashim TE210-228.3 Construction details. Including foundations, maintenance, equipment Vehicular Ad Hoc Networks (VANETs) enable communication between vehicles to avoid the accident. Cluster is a technique in VANETs used to group vehicles. The aim of this thesis is to mitigate uplink load at Base-Stations (BSs) resulted from the following: first, increased number of vehicles in the urban city leads to an increase in the number of cluster head (CH) in the network while each CH required uplink channel from BS. Second, increased vehicles mobility makes the clusters unstable and try to reserve another uplink channel from the BS. Third, the handover problem in the cell edges makes the CHs try to reconnect with the BS. Fourth, duplicated information sent from CHs to the BSs at the intersections make the BSs loaded by unnecessary information. This study proposed an Efficient Up-link Load Reduction (EULR) model to mitigate the uplink load at BSs. EULR model consisted of three parts: the first part, two novel algorithms Smart CH Election (SCHE) and Hybrid Cluster-Head Election (HCHE) to increase cluster stability and reduce the number of CHs changes in the network by selecting the best vehicle as cluster head (CH) based on two dynamic thresholds. Second part, Intelligent Cluster-Head (ICH) method is proposed which aims to mitigate handover problem of a CHs at the cell edge of a neighbor's BSs by transferring uplink connection to the CH that has the highest RSS and hence reducing load at the BSs. Last part, Dynamic Multi-Agent (DMA) method is proposed to avoid duplicated information transmission from CHs at intersections to the BSs. The DMA method filtered the CHs information by sending only new information to the BS; therefore, this method helped to reduce the load at BSs. Performance of the EULR model is evaluated through simulation with real-time datasets. Overall, the EULR model reduces the number of CHs by 9.53%, increased CHs stability by 40.38%, achieved less packet loss by 26.81% and reduced the duplicated information at the intersection by 81% than the previous related works. Finally, the proposed methods have shown significant network performance results compared to previous related works as stated in this thesis. 2019-09 Thesis http://eprints.uthm.edu.my/50/ http://eprints.uthm.edu.my/50/1/24p%20ALI%20HASHIM%20ABBAS%20AL-SALLAMI.pdf text en public http://eprints.uthm.edu.my/50/2/ALI%20HASHIM%20ABBAS%20AL-SALLAMI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/50/3/ALI%20HASHIM%20ABBAS%20AL-SALLAMI%20WATERMARK.pdf text en validuser phd doctoral Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Elektrik dan Elektronik
institution Universiti Tun Hussein Onn Malaysia
collection UTHM Institutional Repository
language English
English
English
topic TE210-228.3 Construction details
Including foundations, maintenance, equipment
spellingShingle TE210-228.3 Construction details
Including foundations, maintenance, equipment
Abbas Al-Sallami, Ali Hashim
An efficient up-link load reduction model based on clustering in vanets
description Vehicular Ad Hoc Networks (VANETs) enable communication between vehicles to avoid the accident. Cluster is a technique in VANETs used to group vehicles. The aim of this thesis is to mitigate uplink load at Base-Stations (BSs) resulted from the following: first, increased number of vehicles in the urban city leads to an increase in the number of cluster head (CH) in the network while each CH required uplink channel from BS. Second, increased vehicles mobility makes the clusters unstable and try to reserve another uplink channel from the BS. Third, the handover problem in the cell edges makes the CHs try to reconnect with the BS. Fourth, duplicated information sent from CHs to the BSs at the intersections make the BSs loaded by unnecessary information. This study proposed an Efficient Up-link Load Reduction (EULR) model to mitigate the uplink load at BSs. EULR model consisted of three parts: the first part, two novel algorithms Smart CH Election (SCHE) and Hybrid Cluster-Head Election (HCHE) to increase cluster stability and reduce the number of CHs changes in the network by selecting the best vehicle as cluster head (CH) based on two dynamic thresholds. Second part, Intelligent Cluster-Head (ICH) method is proposed which aims to mitigate handover problem of a CHs at the cell edge of a neighbor's BSs by transferring uplink connection to the CH that has the highest RSS and hence reducing load at the BSs. Last part, Dynamic Multi-Agent (DMA) method is proposed to avoid duplicated information transmission from CHs at intersections to the BSs. The DMA method filtered the CHs information by sending only new information to the BS; therefore, this method helped to reduce the load at BSs. Performance of the EULR model is evaluated through simulation with real-time datasets. Overall, the EULR model reduces the number of CHs by 9.53%, increased CHs stability by 40.38%, achieved less packet loss by 26.81% and reduced the duplicated information at the intersection by 81% than the previous related works. Finally, the proposed methods have shown significant network performance results compared to previous related works as stated in this thesis.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Abbas Al-Sallami, Ali Hashim
author_facet Abbas Al-Sallami, Ali Hashim
author_sort Abbas Al-Sallami, Ali Hashim
title An efficient up-link load reduction model based on clustering in vanets
title_short An efficient up-link load reduction model based on clustering in vanets
title_full An efficient up-link load reduction model based on clustering in vanets
title_fullStr An efficient up-link load reduction model based on clustering in vanets
title_full_unstemmed An efficient up-link load reduction model based on clustering in vanets
title_sort efficient up-link load reduction model based on clustering in vanets
granting_institution Universiti Tun Hussein Onn Malaysia
granting_department Fakulti Kejuruteraan Elektrik dan Elektronik
publishDate 2019
url http://eprints.uthm.edu.my/50/1/24p%20ALI%20HASHIM%20ABBAS%20AL-SALLAMI.pdf
http://eprints.uthm.edu.my/50/2/ALI%20HASHIM%20ABBAS%20AL-SALLAMI%20COPYRIGHT%20DECLARATION.pdf
http://eprints.uthm.edu.my/50/3/ALI%20HASHIM%20ABBAS%20AL-SALLAMI%20WATERMARK.pdf
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