空天地海一体化网络中面向优先级保障的网络切片  

Space-Air-Ground-Sea Integrated Network Slicing for Guaranteed Priority

作　　者：韩欢 刘伟[1] 杨惠婷 HAN Huan;LIU Wei;YANG Huiting(Xidian University,Xi'an 710000,China)

机构地区：[1]西安电子科技大学,陕西西安710000

出　　处：《移动通信》2024年第9期80-87,共8页Mobile Communications

基　　金：国家重点研发计划项目“面向未来无线通信信息处理若干关键问题的数学理论和方法”(2021YFA1000500)。

摘　　要：空天地海一体化网络在全球无缝覆盖方面发挥着重要作用,其承载的任务包括常规任务和紧急任务,不同的任务具有不同优先级。基于多功能时间扩展图,建立任务优先级、服务功能链、通信、存储和计算资源的耦合约束,并提出了NS-GP算法。NS-GP算法联合优化VNF部署和路由策略,使得合理分配网络资源保障高优先级任务的同时,尽可能多得完成低优先级任务。仿真结果表明,所提出的NS-GP算法优于固定VNF部署算法。The space-air-ground-sea integrated network(SAGSIN)plays an important role in offering global coverage.The SAGSIN tasks mainly include common and emergency tasks,and different tasks have different priorities.Based on the multifunctional time-expanded graph,this paper establishes the coupling constraints of task priority,service function chain,communication,storage and computing resources,and proposes a Network Slicing for Guaranteed Priority(NS-GP)algorithm.The NS-GP algorithm jointly optimizes the virtual network function(VNF)deployment and routing,so that the network resources are reasonably allocated to ensure high-priority tasks while completing as many low-priority tasks as possible.The simulation results show that the proposed NS-GP algorithm is superior to the fixed-virtual network function deployment algorithm.

关 键 词：空天地海一体化网络 任务优先级 网络切片 多功能时间扩展图 

分 类 号：TN929.5[电子电信—通信与信息系统]