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Service Mobility Support Scheme in SDN-based Fog Computing Environment

SDN 기반 Fog Computing 환경에서 서비스 이동성 제공 방안

  • Kyung, Yeun-Woong (Division of Computer Engineering, Hanshin University) ;
  • Kim, Tae-Kook (Dept. of Information, Communications & Software Engineering, Tongmyong University)
  • 경연웅 (한신대학교 컴퓨터공학부) ;
  • 김태국 (동명대학교 정보통신소프트웨어공학과)
  • Received : 2020.08.17
  • Accepted : 2020.09.18
  • Published : 2020.09.30

Abstract

In this paper, we propose a SDN-based fog computing service mobility support scheme. Fog computing architecture has been attracted because it enables task offloading services to IoT(Internet of Things) devices which has limited computing and power resources. However, since static as well as mobile IoT devices are candidate service targets for the fog computing service, the efficient task offloading scheme considering the mobility should be required. Especially for the IoT services which need low-latency response, the new connection and task offloading delay with the new fog computing node after handover can occur QoS(Quality of Service) degradation. Therefore, this paper proposes an efficient service mobility support scheme which considers both task migration and flow rule pre-installations. Task migration allows for the service connectivity when the fog computing node needs to be changed. In addition, the flow rule pre-installations into the forwarding nodes along the path after handover enables to reduce the connection delay and service interruption time.

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