Title: Cloud-assisted multi-tier hierarchical safety routing strategy for collision avoidance in vehicular ad hoc network
Authors: V. Nalina; P. Jayarekha
Addresses: Department of Information Science and Engineering, BMS College of Engineering, Bangalore, Karnataka, India ' Department of Information Science and Engineering, BMS College of Engineering, Bangalore, Karnataka, India
Abstract: The Vehicular Adhoc Network (VANET) comprises a number of moving vehicles that establish wireless communication between them directly or using fixed infrastructure. The main intention of VANET is to protect human lives from a dangerous situation and avoid chain collisions by alerting vehicles through emergency messages. This paper proposes a Cloud-assisted Multi-tier Hierarchical Safety Routing (CM-HSR) strategy to avoid chain collisions with efficient resource usage. For effectively handling an emergency situation and network dynamism, the CM-HSR dynamically changes the multi-tier structure with the help of roadside infrastructures. To ensure reliable delivery with minimum redundant rate, the CM-HSR incorporates two mechanisms that are Accident severity level-based Dangerous region Formation (ADF) and Multi-criteria-based Decision Making (MDM). Finally, the simulation results demonstrate that the proposed CM-HSR attains better performance in terms of latency, duplicate packet, number of collisions, number of transmitted data packets, reachability, overhead and number of secondary collisions in evaluation.
Keywords: cloud-assisted VANET; logical multi-tier hierarchical structure; multicast message dissemination; multi-criteria-based decision making; optimal forwarder vehicle selection.
DOI: 10.1504/IJVICS.2021.119594
International Journal of Vehicle Information and Communication Systems, 2021 Vol.6 No.3/4, pp.251 - 273
Received: 26 Mar 2020
Accepted: 09 May 2020
Published online: 10 Dec 2021 *