摘要
为了满足高铁网络中不同业务对带宽、延迟、可靠性等多元化的要求,采用集中式与分布式相结合的方法,提出一种基于SDN和MEC的高铁网络多维资源适配架构,采用了SDN逻辑集中控制和MEC的关键技术和方法,并在SDN控制器、MEC服务器和软件定义移动单元三个实体上设计了核心功能组件,实现链路状态信息实时收集、多维网络资源动态适配、服务及时响应等能力,通过一个实际的高铁网络应用案例测试验证了该架构在时延、丢包率等方面的性能提升,最后讨论了该架构未来的一些问题和研究方向。
To meet the diversified requirements of different services in the high-speed rail networks,such as bandwidth,delay,and reliability,a multi-dimensional resource adaptation architecture of high-speed rail networks based on software-defined networking(SDN)and multi-access edge computing(MEC)is proposed.It adopts the key technologies and methods of SDN logic centralized con-trol and MEC,and designs core functional components on three entities of the SDN controller,MEC server and software-defined mo-bile unit.It realizes the real-time collection of link state information,dynamic adaptation of multi-dimensional network resources,and timely response to services.Through a practical high-speed rail network application case test,it verifies the performance improvement of the architecture in terms of reliability,delay and resource utilization.Finally,some future problems and research directions of the architecture are discussed.
作者
严晓云
李佳伟
刘智鑫
YAN Xiaoyun;LI Jiawei;LIU Zhixin(China Academy of Electronics and Information Technology,Beijing 100041,China;China Satellite Network Innovation Co.,Ltd.,Beijing 10o029,China;Institute of Systems Engineering,Academy of Military Sciences,Beijing 100141,China)
出处
《计算机测量与控制》
2023年第12期303-309,共7页
Computer Measurement &Control
基金
国家自然科学基金(62101585,62201534)。