On Link Availability Probability of Routing Protocols for Urban Scenario in VANETs

TL;DR

This paper evaluates and compares link availability probabilities of routing protocols in urban VANET scenarios, introducing enhancements to existing protocols to improve performance metrics like packet delivery and delay.

Contribution

It proposes modifications to AODV, DSR, and FSR routing protocols, demonstrating improved link availability and delivery metrics in urban VANETs.

Findings

MOD-DSR outperforms others in packet delivery ratio

Enhanced protocols show higher link availability

Trade-off with increased routing overhead

Abstract

This paper presents the link availability probability. We evaluate and compare the link availability probability for routing protocols; Ad hoc On-demand Distance vector (AODV), Dynamic Source Routing (DSR) and Fisheye State Routing (FSR) for different number of connections and node density. A novel contribution of this work is enhancement in existing parameters of routing protocols; AODV, DSR and FSR as MOD-AODV, MOD-DSR and MOD-FSR. From the results, we observe that MOD-DSR and DSR outperform MOD-AODV, AODV, MODOLSR and OLSR in terms of Packet Delivery Ratio (PDR), Average End-to End Delay (AE2ED), link availability probability at the cost of high value of Normalized Routing Overhead (NRO).