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Structured P2P Overlay of Mobile Brokers for Realizing Publish/Subscribe Communication in VANET

机译:移动经纪的结构化P2P叠加层,用于在Vanet中实现发布/订阅通信

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Publish/subscribe communication paradigm provides asynchrony and decoupling, making it an elegant alternative for designing applications in distributed and dynamic environment such as vehicular ad hoc networks (VANETs). In this paradigm, the broker is the most important component that decouples other two components, namely, publisher and subscriber. Previous research efforts have either utilized the deployment of distributed brokers on stationary road side info-stations or have assigned the role of broker to any moving vehicle on ad hoc basis. In one approach, lots of preinstalled infrastructures are needed whereas, in another, the quality of service is not guaranteed due to unpredictable moving and stopping patterns of vehicles. In this paper, we present the architecture of distributed mobile brokers which are dynamically reconfigurable in the form of structured P2P overlay and act as rendezvous points for matching publications and subscriptions. We have taken city buses in urban settings to act as mobile brokers whereas other vehicles are considered to be in role of publishers and subscribers. These mobile brokers also assist in locating a vehicle for successful and timely transfer of notifications. We have performed an extensive simulation study to compare our approach with previously proposed approaches. Simulation results establish the applicability of our approach.
机译:发布/订阅通信范例提供了异步和解耦,使其成为在分布式和动态环境中设计应用程序的优雅替代方案,例如车辆ad hoc网络(VANET)。在此范例中,经纪人是最重要的组件,即与其他两个组件,即发布者和订户分离。以前的研究努力已经利用了固定路边信息站的分布式经纪人的部署,或者已将经纪人的作用分配给AD HOC的任何移动车辆。在一种方法中,需要许多预安装的基础设施,而在另一个方面,由于车辆的不可预测和停止模式,不能保证服务质量。在本文中,我们介绍了分布式移动经纪的架构,其以结构化P2P覆盖层的形式动态可重新配置,并充当匹配出版物和订阅的Rendezvous点。我们在城市环境中拍摄了城市公共汽车,以充当移动经纪人,而其他车辆被认为是出版商和订户的作用。这些移动经纪人还有助于定位车辆成功,及时地转移通知。我们已经进行了广泛的仿真研究,以比较我们以前提出的方法的方法。仿真结果确定了我们的方法的适用性。

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