Improved segment based geographical routing (ISR) Protocol for vehicular ad-hoc networks

Abstract

Vehicular Ad hoc Networks (VANETs) have adopted the smart abilities of wireless networks and make the data communication possible through vehicle nodes. These networks support various types of applications related to safety and infotainment. The routing protocols have adopted for data communication and handle the high mobility of nodes plus dynamic and unpredictable topologies in the network. Due to these limitations, the data communication become unreliable which causes data loss and link disconnections. Still, these issues need to address through smart and network aware routing protocols. Connectivity among vehicle nodes is one of the main and significant requirements in these networks. Geographical routing protocols are best to deal with these networks due to their location information exchange strategy to find the destination in the network. This research proposed an Improved Segment based Geographical Routing Protocol (ISR) which only need position information of the vehicle nodes for routing decisions. The research aims to improve connectivity and reduce network overhead in the network. The proposed protocol is considering traffic density, distance, and direction of nodes for the next forwarder and route selection. This protocol is viable for urban traffic conditions. The simulation results show that the proposed protocol performed better in terms of packet delivery ratio, end-to-end delay, and network overhead compared to state of art protocols