Research of efficiency indicators of road transport networks

DOI: 10.31673/2412-4338.2020.047986

Abstract

One of the most important components of Intelligent Transport Systems (ITS) is the car network VANET (Vehicular Ad Hoc Network), the nodes of which are represented by the vehicles themselves on the installed specialized communication modules. The primary purpose of this type of network is to alert road users to emergencies. VANET is part of the ITS concept, which plays the role of forming a highly dynamic network structure, which is self-organizing to transmit information about traffic and incidents. VANETs are the starting point for building a full-scale ITS, as they can operate together with both infrastructure stations and in isolation. The high cost of deploying the infrastructure part of ITS further emphasizes the importance of VANET networks as part of a common integrated system. VANET networks have a number of features, such as high vehicle speed, high node density, variability in the structure and composition of networks, most often clustering into isolated areas. All this imposes special requirements on the modes and parameters of the network. Thus, the key requirement is to minimize delays for the transmission of messages from road safety programs and maintain a high level of network connectivity.
A large number of routing protocols have been developed for VANET networks, which can be classified according to various criteria, such as protocol characteristics, information routing method, quality of service, network architecture and other criteria.
The paper considers the features of specialized road transport networks and the features of routing in these networks. A modification of the routing protocol is proposed, which adapts the FSR protocol to work in VANET networks. Experimental studies of the effectiveness of the proposed protocol. The FSRM protocol allows you to get service quality values up to 48% better for the criterion of maximum average delivery time.

Keywords: road transport networks, VANET, routing protocols, simulation.

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