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Design and Performance Analysis of Bandwidth-Efficient Handoff Scheme in Proxy Mobile IPv6 Networks

프록시 모바일 IPv6 네트워크에서 대역폭에 효율적인 핸드오프 기법의 설계 및 성능 분석

  • 유승백 (성균관대학교 정보통신대학원 정보보호학과) ;
  • 정종필 (성균관대학교 정보통신대학)
  • Received : 2013.11.21
  • Accepted : 2014.02.07
  • Published : 2014.02.28

Abstract

In this paper, we propose a novel Proxy Mobile IPv6 network bandwidth-efficient handoff scheme. MN are classified into slow and fast one. At first MN should be registered in the microcell for bandwidth efficient handoff scheme. microcell is overlapped to handle the overflow session request which is nested. Overflow session request in macrocell requests to go back from the boundary of the microcell to new microcell. If idle session traffic is in a cell, it is requested by the target microcell. Analysis model was developed, an existing session of the session blocking probability and forcing termination probability of the session request have improved considerably. If the total traffic load of the system is not very large, the proposed scheme has the best bandwidth efficiency and provides better quality of service (QoS) to MN without costs of a lot of processing on the system.

본 논문에서는, 프록시 모바일 IPv6 네트워크에서 대역폭에 효율적인 핸드오프 기법을 분석하고 제안한다. MN(Mobile Node)은 느린 MN과 빠른 MN으로 구분된다. 대역폭에 효율적인 핸드오프 기법에서 먼저 빠른 MN은 마이크로셀에 등록되어야 한다. 매크로셀은 오버플로우된 세션 요청을 처리하기 위해 마이크로셀로 이동한다. 매크로셀에서 오버플로우된 세션 요청은 마이크로셀의 경계에서 새로운 마이크로셀로 돌아 갈 것을 요청한다. 유효 트래픽의 세션이 셀 내에 있다면 대상 마이크로셀에 의해 요청된다. 분석 모델을 개발하였고, 기존 세션호출의 차단 확률과 세션호출이 강제로 종료할 확률 등의 성능이 상당히 향상되었다. 시스템의 전체 트래픽 로드가 매우 크지 않은 경우에 제안 기법은 가장 우수한 대역폭 효율을 가지고 있으며, 시스템에 많은 처리 비용 없이도 MN에게 더 나은 서비스 품질을 제공한다.

Keywords

References

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