Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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NEMO-enabled Hybrid Distributed Mobility Management

네트워크 이동성을 지원하는 하이브리드 분산 이동성 관리

  • Wie, Sunghong (Department of Electrical and Electronic Engineering, The Cyber University of Korea)
  • Received : 2018.04.24
  • Accepted : 2018.05.13
  • Published : 2018.07.31
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Abstract

In Distributed Mobility Management (DMM) protocol, the mobility functions are distributed to network edge closer to mobile users. DMM protocol has some advantages of low-cost traffic delivery, optimized routing path, high scalability. However, it needs many mobile anchors to exchange signaling messages and it results in a high signaling cost. Thus, previous works suggested the hybrid DMM protocol to reduce the high signaling cost for long-live sessions and this paper extends a hybrid scheme to the NEMO environment. The mobile routers are installed at vehicles and can move together with several mobile devices. So we can define the high-mobility property for mobile routers and suggest the hybrid scheme using this property. According to the high-mobility property of mobile routers, we can distribute the mobile anchors or allocate a centralized mobile anchor. In this paper, we mathematically analyze the performance of the proposed NEMO-enabled hybrid DMM protocol and show superior performance.

분산 이동성 관리 방식은 이동성 기능을 사용자와 가까이에 위치한 네트워크 경계로 분산시킨다. 이에 따라서 트래픽 전달 비용을 낮추고 패킷 전달 경로를 최적화할 수 있으며 확장성이 높은 장점을 갖는다. 하지만, 시그널링 메시지를 교환하기 위한 모바일 앵커의 개수가 증가하여 시그널링 비용이 증가하는 문제점을 갖는다. 그래서 지속시간이긴 세션에 대해서 높은 시그널링 비용을 감소시키는 하이브리드 분산 이동성 방식이 연구되었고 본 논문에서는 네트워크 이동성을 지원하는 환경으로 하이브리드 방식을 확장한다. 모바일 라우터는 차량에 장착되어 모바일 장치들과 함께 이동한다. 따라서 모바일 라우터에 대해서 고속 이동성 특성을 정의하여 이용하는 하이브리드 방식을 제안한다. 모바일 라우터의 이동성 특성에 따라서 모바일 앵커를 분산하여 할당하거나 혹은 특정한 모바일 앵커를 지정하여 할당한다. 본 논문은 네트워크 이동성을 지원하는 하이브리드 분산 이동성 관리 방식에 대해서 제안하고 성능을 수학적으로 분석하여 우수한 성능임을 보여준다.

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