DefinePK

Abstract

Vehicular ad-hoc network (VANET) is gaining the research interest lately due to its advantages in providing valid and fresh information for vehicles on the road. In VANET information exchanges between vehicles and a server in a multi-hop fashion. Multi-hop fashion implies an existence of multi route to a destination, and a routing protocol has the role of determining the best path among the exciting routes to a destination. Most of the current routing protocols use the traditional hop count as a metric to distinguish between routes. In this paper SNR is proposed as routing metric to determine the best path to a destination. Moreover, this paper focuses on development and implementation of routing protocol metric namely SNR for Dynamic MANET on-demand (DYMO) protocol in VANET. The new routing metric is implemented in the DYMO model in INET module under OMNET++ simulator. A simulations study has been carried out to analyze the performances of the improved DYMO with SNR. Moreover, a comparison between the DYMO and modified DYMO is conducted to study the effect of mobility, network road traffic condition and data traffic density. Network performances have been studied in terms of throughput, end-to-end delay and Protocol overhead. The obtained result show that the modified DYMO has better performances compare to the DYMO with the traditional hop-count metric.