5 research outputs found

    Dynamic Q-learning and fuzzy CNN based vertical handover decision for integration of DSRC, mmWave 5G and LTE in internet of vehicles (IoV)

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    Internet of vehicles commonly known as IOV is a newly emerged area which with the help of internet assisted communication provides the support to the vehicles. Due to the access of more than one radio access network, 5G makes the connectivity ubiquitous. Vehicle mobility demands for handover in such heterogeneous networks. Instead of using better technology for long ranges and other types of traffic, the vehicles are using devoted short range communications at short ranges. Commonly, networks for handovers were used to be selected directly or with the available radio access it used to connect automatically. With the help of this, the hand over occurrence now takes places frequently. This paper is based on the incorporation of DSRC, LTE as well as mm Wave on Internet of vehicles which is integrated with the Handover decision making algorithm, Network Selection and Routing. The decision of the handovers is to ensure that if there is any requirement of the vertical handovers using dynamic Q-learning algorithms in which entropy function is used to predict the threshold according to the characteristics of the environment. The network selection process is done using Fuzzy Convolution Neural Network commonly known as FCNN which makes the fuzzy rules by considering the parameters such as strength of its signal, its distance, the density of the vehicle, the type of its data as well the Line of Sight (LoS). V2V chain routing is presented in such a manner that V2V pairs are also selected with the help of jellyfish optimization algorithm considering three metrics – Vehicle metrics, Channel metrics and Vehicle performance metrics. OMNET++ simulator is the software in which system is developed. The performance evaluation is done according to its Handover Success Probability, Handover Failure, Redundant Handover, Mean Throughput, delay and Packet Loss

    Contributions to Vehicular Communications Systems and Schemes

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    La derniĂšre dĂ©cennie a marquĂ© une grande hausse des applications vĂ©hiculaires comme une nouvelle source de revenus et un facteur de distinction dans l'industrie des vĂ©hicules. Ces applications vĂ©hiculaires sont classĂ©es en deux groupes : les applications de sĂ©curitĂ© et les applications d'info divertissement. Le premier groupe inclue le changement intelligent de voie, l'avertissement de dangers de routes et la prĂ©vention coopĂ©rative de collision qui comprend la vidĂ©o sur demande (VoD), la diffusion en direct, la diffusion de mĂ©tĂ©o et de nouvelles et les jeux interactifs. Cependant, Il est Ă  noter que d'une part, les applications vĂ©hiculaires d'info divertissement nĂ©cessitent une bande passante Ă©levĂ©e et une latence relativement faible ; D'autre part, les applications de sĂ©curitĂ© requiĂšrent exigent un dĂ©lai de bout en bout trĂšs bas et un canal de communication fiable pour la livraison des messages d'urgence. Pour satisfaire le besoin en applications efficaces, les fabricants de vĂ©hicules ainsi que la communautĂ© acadĂ©mique ont introduit plusieurs applications Ă  l’intĂ©rieur de vĂ©hicule et entre vĂ©hicule et vĂ©hicule (V2V). Sauf que, l'infrastructure du rĂ©seau sans fil n'a pas Ă©tĂ© conçue pour gĂ©rer les applications de vĂ©hicules, en raison de la haute mobilitĂ© des vĂ©hicules, de l'imprĂ©visibilitĂ© du comportement des conducteurs et des modĂšles de trafic dynamiques. La relĂšve est l'un des principaux dĂ©fis des rĂ©seaux de vĂ©hicules, car la haute mobilitĂ© exige au rĂ©seau sans fil de faire la relĂšve en un trĂšs court temps. De plus, l'imprĂ©visibilitĂ© du comportement du conducteur cause l'Ă©chec des protocoles proactifs traditionnels de relĂšve, car la prĂ©diction du prochain routeur peut changer en fonction de la dĂ©cision du conducteur. Aussi, le rĂ©seau de vĂ©hicules peut subir une mauvaise qualitĂ© de service dans les rĂ©gions de relĂšve en raison d'obstacles naturels, de vĂ©hicules de grande taille ou de mauvaises conditions mĂ©tĂ©orologiques. Cette thĂšse se concentre sur la relĂšve dans l'environnement des vĂ©hicules et son effet sur les applications vĂ©hiculaires. Nous proposons des solutions pratiques pour les rĂ©seaux actuellement dĂ©ployĂ©s, principalement les rĂ©seaux LTE, l'infrastructure vĂ©hicule Ă  vĂ©hicule (V2V) ainsi que les outils efficaces d’émulateurs de relĂšves dans les rĂ©seaux vĂ©hiculaires.----------ABSTRACT: The last decade marked the rise of vehicular applications as a new source of revenue and a key differentiator in the vehicular industry. Vehicular Applications are classified into safety and infotainment applications. The former include smart lane change, road hazard warning, and cooperative collision avoidance; however, the latter include Video on Demand (VoD), live streaming, weather and news broadcast, and interactive games. On one hand, infotainment vehicular applications require high bandwidth and relatively low latency; on the other hand, safety applications requires a very low end to end delay and a reliable communication channel to deliver emergency messages. To satisfy the thirst for practical applications, vehicle manufacturers along with research institutes introduced several in-vehicle and Vehicle to Vehicle (V2V) applications. However, the wireless network infrastructure was not designed to handle vehicular applications, due to the high mobility of vehicles, unpredictability of drivers’ behavior, and dynamic traffic patterns. Handoff is one of the main challenges of vehicular networks since the high mobility puts pressure on the wireless network to finish the handoff within a short period. Moreover, the unpredictability of driver behavior causes the traditional proactive handoff protocols to fail, since the prediction of the next router may change based on the driver’s decision. Moreover, the vehicular network may suffer from bad Quality of Service (QoS) in the regions of handoff due to natural obstacles, large vehicles, or weather conditions. This thesis focuses on the handoff on the vehicular environment and its effect on the vehicular applications. We consider practical solutions for the currently deployed networks mainly Long Term Evolution (LTE) networks, the Vehicle to Vehicle (V2V) infrastructure, and the tools that can be used effectively to emulate handoff on the vehicular networks

    A Cooperative Road Topology-Based Handoff Management Scheme

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