Abstract
The extremely fast topology has created new requirements for the geographic routing protocol, which has been the most efficient solution for Vehicular Ad-hoc Networks (VANETs). The frequent disconnection of links makes the choice of the next routing node extremely difficult. Hence, an efficient routing algorithm needs to deliver the appropriate path to transfer the data packets with the most relevant quality of service (QoS). In this work, the weight-aware greedy perimeter stateless (WA-GPSR) routing protocol is presented. The enhanced GPSR protocol computes the reliable communication area and selects the next forwarding vehicle based on several routing criteria. The proposal has been evaluated and compared to Maxduration-Minangle GPSR (MM-GPSR) and traditional GPSR using strict metric analysis. Our experimental results using NS-2 and VanetMobiSim, have demonstrated that WA-GPSR has the ability to enhance network performance.
Highlights
Over the recent decade, Vehicular Ad hoc Network (VANET) underwent tremendous technological advances
We evaluate and compare our improved Weight-Aware Geographic Perimeter Stateless Routing protocol (WA-GPSR) protocol with the original GPSR protocol and the Maxduration-Minangle (MM-GPSR) GPSR protocol [8] using exhaustive quality of service (QoS) metrics
Our results show that our improved WA-GPSR improves packets delivery ratio, reduces end-to-end delay and reached lowers routing cost as well as improves network efficiency
Summary
Vehicular Ad hoc Network (VANET) underwent tremendous technological advances. In consequence, routing in VANETs has been a challenge that has led designers to try various strategies to solve it. Researchers in [6] attests that Geo-Networking has many merits and features, such as high scalability, good performance when velocity of vehcles is high and various information can be included in the status information like geographic location, time stamp, speed and exchange it via location based service. Greedy Perimeter StatelessRouting(GPSR) [7] is the most widely recognized geographical protocol, which exploits the geographic information of vehicles according to VANET characteristics.
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