Effective Edge-Cloud Interplay for NFV-Based Optical Metro-Access Networks Supporting IoT Services  

作　　者：Jin Feiming Zhang Yukun Li Hanxue Amr Tolba Zhang Tiantian 

机构地区：[1]Science and Technology Department,Chongqing University of Posts and Telecommunications,Chongqing 400065,China [2]School of Communications and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China [3]Department of Computer Science,Community College,King Saud University,Riyadh 11437,Saudi Arabia

出　　处：《China Communications》2025年第4期117-128,共12页中国通信(英文版)

基　　金：supported by the Researchers Supporting Project of King Saud University,Riyadh,Saudi Arabia,under Project RSPD2025R681。

摘　　要：In optical metro-access networks,Access Points(APs)and Data Centers(DCs)are located on the fiber ring.In the cloud-centric solution,a large number of Internet of Things(IoT)data pose an enormous burden on DCs,so the Virtual Machines(VMs)cannot be successfully launched due to the server overload.In addition,transferring the data from the AP to the remote DC may cause an undesirable delivery delay.For this end,we propose a promising solution considering the interplay between the cloud DC and edge APs.More specifically,bringing the partial capability of computing in APs close to things can reduce the pressure of DCs while guaranteeing the expected Quality of Service(QoS).In this work,when the cloud DC resource becomes limited,especially for delay sensitive but not computing-dependent IoT applications,we degrade their VMs and migrate them to edge APs instead of the remote DC.To avoid excessive VM degradation and computing offloading,we derive appropriate VM degradation coefficients based on classic microeconomic theory.Simulation results demonstrate that our algorithms improve the service providers'utility with the ratio from 34%to 89%over traditional cloud-centric solutions.

关 键 词：computing offloading edge-cloud interplay network function virtualization optical metroaccess network service degradability 

分 类 号：TN929.1[电子电信—通信与信息系统]