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arXiv 1503.05646cs.NI
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软件车联网实时的查询服务规则优化

Rule Optimization for Real-Time Query Service in Software-Defined Internet of Vehicles

Xin Wang, Cheng Wang, Changjun Jiang, Lei Yang, Zhong Li, Xiaobo Zhou

摘要:

随着通信技术和智慧城市的发展,车联网(IoV)近年来受到了工业界和研究界的广泛关注。然而,专有的和封闭的方式来操作网络设备中的硬件,减缓了新业务的部署和扩展的车联网的进展。此外,传统网络中紧密耦合的控制和数据平面显著增加了网络管理的复杂性和成本。通过提出一种新的架构,称为软件定义的车联网(SDIV),我们采用软件定义的网络(SDN)架构,以解决这些问题,利用其分离的控制平面从数据平面和一个统一的方式来配置异构交换机。然而,由于OpenFlow启用的交换机(SDN的主要组件)的流表大小有限,IoV的特性在规则安装中引入了非常大的挑战。为了实现车联网的可扩展性,有必要构建紧凑的流表。在此基础上,提出了一种SDIV中实时的【形】查询服务规则优化方法。具体来说,我们将有线数据平面和无线数据平面分开,在无线数据平面使用组播地址。此外,我们在有线数据平面引入了一个目的地驱动的模型,以减少交换机上的规则数量。实验结果表明,该规则优化策略在保证数据传输性能的前提下,减少了规则的数量。

英文摘要:

Internet of Vehicles (IoV) has recently gained considerable attentions from both industry and research communities since the development of communication technology and smart city. However, a proprietary and closed way of operating hardwares in network equipments slows down the progress of new services deployment and extension in IoV. Moreover, the tightly coupled control and data planes in traditional networks significantly increase the complexity and cost of network management. By proposing a novel architecture, called Software-Defined Internet of Vehicles (SDIV), we adopt the software-defined network (SDN) architecture to address these problems by leveraging its separation of the control plane from the data plane and a uniform way to configure heterogeneous switches. However, the characteristics of IoV introduce the very challenges in rule installation due to the limited size of Flow Tables at OpenFlow-enabled switches which are the main component of SDN. It is necessary to build compact Flow Tables for the scalability of IoV. Accordingly, we develop a rule optimization approach for real-time query service in SDIV. Specifically, we separate wired data plane from wireless data plane and use multicast address in wireless data plane. Furthermore, we introduce a destination-driven model in wired data plane for reducing the number of rules at switches. Experiments show that our rule optimization strategy reduces the number of rules while keeping the performance of data transmission.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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