Current Proceedings on Technology

Yazarlar: Maryam Al Lawati, Hadj Bourdoucen, Mohamed Ould-Khaoua, Osama M. Rehman

Konular:-

Anahtar Kelimeler:Car following model-intersection management,Car following model-roundabout layout,Mobility Models,NS-2,SUMO,VANETs.

Özet: The accumulative number of road accidents and the limited capacity of the streets are among the main reasons of the increasing interest in research area of vehicular applications. These applications concentrate mainly on improving the drivers and passengers safety and comfort over the course of their travel on the roads. Vehicular Ad-Hoc Networks (VANETs) is a class of Intelligent Transportation Systems (ITS) which aim to reduce the number of accidents, improve the flow of vehicular traffic and provide comfort for the drivers and passengers. Mobility models are the key requirement that provide realistic environment for VANETs simulation. They represent the real behaviour and movement of vehicular traffic. Therefore, these models should be as close as possible to the realistic situations and describe truthfully the real world behaviour to provide accurate results. This paper investigates the impact of broadcasting beacon messages between vehicles with two most popular mobility models which are, Intersection Management and Roundabout Layout. These two mobility models provide further understanding on the effect of introducing realistic details that can be found in physical world. The mobility models are generated using Simulation of Urban Mobility (SUMO) traffic generator and the broadcast protocol is implemented in Network Simulator NS-2. The performance of broadcast protocol is evaluated by calculating the Packet Delivery Ratio (PDR). The qualitative and quantitative results obtained demonstrate that intersections and roundabouts have great impact on packets delivery between vehicles mainly in dense environments.

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