A routing algorithm based on movement direction and position of vehicles for vehicular Ad hoc networks

Document Type : Persian Original Article

Authors

1 Department of Computer Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran

2 Department of Computer Engineering, Faculty of Computer Engineering,Tabriz Branch, Islamic Azad University, Tabriz, Iran

Abstract

The special features of Vehicular Ad hoc Networks (VANET) such as dynamic topology and limited vehicle radius, as well as the wireless transmissions and presence of various obstacles such as buildings and trees, highlight the need for Road Side Unit (RSU) equipment. Due to the lack of sustainable communication between the vehicles, the position-based routing algorithms are an appropriate option for these networks. In this paper, a geographic routing algorithm is proposed that considers various parameters such as distance, packet priority, vehicle movement direction, and vehicle density to decrease the end-to-end delay and reduce the packet loss in VANET networks. The conducted simulations in the THE ONE tool have validated the effectiveness of the proposed approach in terms of packet delivery rate, average end-to-end delay, and hop count in comparison to RAGR, CMGR, and SDR algorithms. According to the simulation results, the packet delivery ratio of the proposed approach has improved by 26% and 23% with 200 and 300 vehicles, respectively. Moreover, the proposed approach provides an enhancement of 82% and 65% in end-to-end delay, as well as 14% and 20% in hop count with 200 and 300 vehicles, respectively.

Keywords


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