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EEMDS: An Effective Emergency Message Dissemination Scheme for Urban VANETs

In Vehicular Adhoc Networks (VANETs), disseminating Emergency Messages (EMs) to a maximum number of vehicles with low latency and low packet loss is critical for road safety. However, avoiding the broadcast storm and dealing with large-scale dissemination of EMs in urban VANETs, particularly at inte...

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Detalles Bibliográficos
Autores principales: Ullah, Sami, Abbas, Ghulam, Waqas, Muhammad, Abbas, Ziaul Haq, Tu, Shanshan, Hameed, Ibrahim A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7956621/
https://www.ncbi.nlm.nih.gov/pubmed/33668751
http://dx.doi.org/10.3390/s21051588
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author Ullah, Sami
Abbas, Ghulam
Waqas, Muhammad
Abbas, Ziaul Haq
Tu, Shanshan
Hameed, Ibrahim A.
author_facet Ullah, Sami
Abbas, Ghulam
Waqas, Muhammad
Abbas, Ziaul Haq
Tu, Shanshan
Hameed, Ibrahim A.
author_sort Ullah, Sami
collection PubMed
description In Vehicular Adhoc Networks (VANETs), disseminating Emergency Messages (EMs) to a maximum number of vehicles with low latency and low packet loss is critical for road safety. However, avoiding the broadcast storm and dealing with large-scale dissemination of EMs in urban VANETs, particularly at intersections, are the challenging tasks. The problems become even more challenging in a dense network. We propose an Effective Emergency Message Dissemination Scheme (EEMDS) for urban VANETs. The scheme is based on our mobility metrics to avoid communication overhead and to maintain a stable cluster structure. Every vehicle takes into account its direction angle and path loss factor for selecting a suitable cluster head. Moreover, we introduce estimated link stability to choose a suitable relay vehicle that reduces the number of rebroadcasts and communication congestion in the network. Simulation results show that EEMDS provides an acceptable end-to-end delay, information coverage, and packet delivery ratio compared to the eminent EM dissemination schemes.
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spelling pubmed-79566212021-03-16 EEMDS: An Effective Emergency Message Dissemination Scheme for Urban VANETs Ullah, Sami Abbas, Ghulam Waqas, Muhammad Abbas, Ziaul Haq Tu, Shanshan Hameed, Ibrahim A. Sensors (Basel) Article In Vehicular Adhoc Networks (VANETs), disseminating Emergency Messages (EMs) to a maximum number of vehicles with low latency and low packet loss is critical for road safety. However, avoiding the broadcast storm and dealing with large-scale dissemination of EMs in urban VANETs, particularly at intersections, are the challenging tasks. The problems become even more challenging in a dense network. We propose an Effective Emergency Message Dissemination Scheme (EEMDS) for urban VANETs. The scheme is based on our mobility metrics to avoid communication overhead and to maintain a stable cluster structure. Every vehicle takes into account its direction angle and path loss factor for selecting a suitable cluster head. Moreover, we introduce estimated link stability to choose a suitable relay vehicle that reduces the number of rebroadcasts and communication congestion in the network. Simulation results show that EEMDS provides an acceptable end-to-end delay, information coverage, and packet delivery ratio compared to the eminent EM dissemination schemes. MDPI 2021-02-25 /pmc/articles/PMC7956621/ /pubmed/33668751 http://dx.doi.org/10.3390/s21051588 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ullah, Sami
Abbas, Ghulam
Waqas, Muhammad
Abbas, Ziaul Haq
Tu, Shanshan
Hameed, Ibrahim A.
EEMDS: An Effective Emergency Message Dissemination Scheme for Urban VANETs
title EEMDS: An Effective Emergency Message Dissemination Scheme for Urban VANETs
title_full EEMDS: An Effective Emergency Message Dissemination Scheme for Urban VANETs
title_fullStr EEMDS: An Effective Emergency Message Dissemination Scheme for Urban VANETs
title_full_unstemmed EEMDS: An Effective Emergency Message Dissemination Scheme for Urban VANETs
title_short EEMDS: An Effective Emergency Message Dissemination Scheme for Urban VANETs
title_sort eemds: an effective emergency message dissemination scheme for urban vanets
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7956621/
https://www.ncbi.nlm.nih.gov/pubmed/33668751
http://dx.doi.org/10.3390/s21051588
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