Download Advanced Technologies for Intelligent Transportation Systems by Marco Picone, Stefano Busanelli, Michele Amoretti, Francesco PDF
By Marco Picone, Stefano Busanelli, Michele Amoretti, Francesco Zanichelli, Gianluigi Ferrari
This publication specializes in rising applied sciences within the box of clever Transportation structures (ITSs) particularly effective details dissemination among automobiles, infrastructures, pedestrians and public transportation structures. It covers the state of the art of Vehicular Ad-hoc Networks (VANETs), with centralized and decentralized (Peer-to-Peer) conversation architectures, contemplating a number of software situations. With a close therapy of rising communique paradigms, together with move networking and allotted algorithms. in contrast to many of the current books, this publication provides a multi-layer assessment of data dissemination platforms, from reduce layers (MAC) to excessive layers (applications). All these elements are investigated contemplating using cellular units, equivalent to smartphones/tablets and embedded platforms, i.e. applied sciences that in final years thoroughly replaced the present marketplace, the person expectancies, and verbal exchange networks. The provided networking paradigms are supported and demonstrated via large simulative research and genuine box deployments in several software scenarios.
This publication represents a reference for pro technologist, postgraduates and researchers within the quarter of clever Transportation platforms (ITSs), instant verbal exchange and dispensed platforms.
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Extra resources for Advanced Technologies for Intelligent Transportation Systems
CAMs are periodically broadcasted by the facility layer at a given frequency satisfying both road safety application requirements and transport and network layer requirements (network heartbeat). The CAM frequency may be determined by the communication management entity, taking into account the supported road safety application’s operating requirements, transport layer requirements and the current channel load. – Event-triggered messages suddenly sent upon a certain event happens, with an unpredictable frequency, but usually in the order of once a second or less.
On the one hand, protocols that proactively build a topology map require a constant heartbeat traffic, which is expensive in terms of resource usage and can lead to congestion in highly dense networks. On the other hand, protocols that actively (on demand) construct a topology map have to face many obstacles. A non exhaustive list of logical topology that characterize VANETs is reported below. • No topology knowledge—In most dissemination applications based on local broadcast, there are no significant advantages on actively build up the network topology.
Moreover, none of the state-of-art solutions has been demonstrated to work in presence of mobile peers. , with Peers on Wheels , PeerTIS , and GraphTIS  proposed P2P architectures where participating cars are peers organized in a Distributed Hash Table (DHT), to receive and distribute useful information to improve the vehicle travel time using dynamic route guidance. In PeerTIS, roads are divided into segments, each with a unique ID that is used as key in the DHT. The main idea is that each node is responsible for a certain part of the ID space and, consequently, for a certain number of road segments.