5G-enabled Hierarchical architecture for software-defined intelligent transportation system
5G-enabled Hierarchical architecture for software-defined intelligent transportation system
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DOI：
10.1016/j.comnet.2018.11.035
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发表时间：
2019-02
期刊：
影响因子：
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通讯作者：
Sadia Din;Anand Paul;A. Rehman
中科院分区：
文献类型：
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作者：
Sadia Din;Anand Paul;A. Rehman
随着科技的飞速发展，越来越多的设备连接到互联网并变得越来越智能。这种进步给智能交通系统（ITS）领域带来了新的挑战，包括高数据传输速率、为用户提供快速响应系统、增加新设备以及远程配置。因此，移动信息系统与智能多式联运服务一起应对这些限制，并从新兴的信息和通信框架中获得相关技术的显著好处。因此，最近在电信领域的进展见证了对ITS，特别是车辆自组织网络（VANETS）的兴趣增加。软件定义网络（sdn）通过其逻辑和集中的控制实体对网络具有灵活性和可编程性，从而为智能交通系统带来优势。然而，由于VANETS的高度移动性，ITS和SDN之间的带宽和连续连接仍然是一个挑战。因此，为了解决这一问题，本文提出了一种新的概念，通过新提出的基于5g的SDN架构来增强ITS的功能。提出的系统架构基于以下三个功能层：传感层、中继层和核心网层。通过灵活和可编程的功能，通过SDN功能实现持续的可访问性。此外，5G架构还提供了高数据速率和带宽。仿真结果表明，所提出的系统架构比ad-hoc按需距离矢量路由协议具有更好的性能。
With the rapid advancement of technology, an increasing number of devices are being connected to the Internet and getting smart. Such advancement brings new challenges in the field of intelligent transportation system (ITS), including transferring of high data rates, providing rapid response system to users, addition of new devices, and their remote configuration. Thus, mobile information systems, along with intelligent multimodal mobility services, cope with such constraints and take significant benefit of the associated technology from emerging information and communication frameworks. Therefore, recent advancement in the field of telecommunication has witnessed increased interest in ITS, especially vehicular ad-hoc networks (VANETS). Software-defined networks (SDNs) can also bring advantages to ITS due their flexibility and programmability to the network via their logical and centralized control entity. However, the bandwidth and continuous connection between ITS and SDN is still a challenge owing to the highly mobile nature of VANETS. Therefore, to address this issue, this paper presents a novel concept for enhancing the capabilities of ITS via the newly proposed 5G-based SDN architecture for ITS. The proposed system architecture is based on the following three function layers: sensing layer, relay layer, and core network layer. Continuous accessibility, via flexible and programmable features, is achieved through SDN features. In addition, high data rates and bandwidth are provided by the proposed 5G architecture. The simulation results show that the proposed system architecture achieves better results than the ad-hoc on-demand distance vector routing protocol.