Vehicle density in VANET applications

Abstract

This paper analyzes how street-level traffic data affects routing in VANETs applications. First, we offer a general review about which protocols and techniques would fit best for VANET applications. We selected five main technical aspects (Transmission, Routing, Quality of Service, Security and Location) that we consider are differential aspects of VANETs from current Ad-Hoc Networks. Second, the paper analyzes how to configure each technical aspect according to the goal of a wide range of VANET applications. Third, we look at the routing aspect in depth, specifically focusing on how vehicle density affects routing, which protocols are the best option when there is a high/low density, etc. Finally, this research implements a sensor technology, based on an acoustics sensor that has been deployed around the city of Xalapa in México, to obtain reliable information on the real-time density of vehicles. The levels of density were discretized and the obtained data samples were used to feed a traffic simulator, which allowed us to obtain a global picture of the density of the central area of the city. According to the specific levels of vehicle density at a specific moment and place, VANET applications may adapt the routing protocol in a real-time way.

An affective ephemeral social network for vehicular scenarios

“…Regarding VANET communication, various methods and protocols have been proposed for group formation and data exchange [31,32]. Most of these methods are based on techniques, such as Centralized [33], Group/Cluster based [34], and Hierarchical [35].…”

Vulnerable Road Users and Connected Autonomous Vehicles Interaction: A Survey

“…In addition, it is required to develop adaptive quality of service routing schemes that can quickly redirect traffic and alert notifications when the established routes are no longer available. In [19] there is a general review about which protocols, techniques and technologies would fit best for CAVs applications. The study details technical aspects of Transmission, Quality of Service, Security, Location and there is an in-depth analysis of the routing aspect, specifically focusing on which protocols are the best option to communicate vehicles with different Road Side Units (RSUs).…”

“…CAVs will implement intelligent algorithms to select the data exchange interfaces. The selection process involves different parameters such as the type of application to be used (mission critical application, entertainment application, driver assistance application, among others), the requirements of the application (bandwidth, minimum delay, percentage of lost packets) and the level of quality of service that the network technology can offer [19].…”