A Localized Mobility Support Scheme for Mobile Nudes in IPv6 Networks

IPv6 네트워크에서 이동 단말의 지역적 이동성 제공 방안

  • 전홍선 (세종대학교 정보통신공학과) ;
  • 우미애 (세종대학교 정보통신공학과)
  • Published : 2004.08.01

Abstract

With rapid advances in wireless communication technologies and with the advent of the smaller and high-performance mobile handsets nowadays, many researches are actively performed for providing seamless communications while mobile nodes are roaming around. As real-time application programs are more prevalent, it is very important to manage mobility of mobile nodes efficiently. In this paper, we propose a localized mobility support scheme that is based on the Mobile IPv6 by IETF. The proposed scheme enhances functionalities in mobile nodes and only uses signaling messages of Mobile IPv6. The performance of the proposed scheme is evaluated through analytical model and simulations. According to the results of the evaluation, the proposed scheme provides better performance than Mobile IPv6 in terms of packet losses and TCP throughput by localizing the binding update messages inside the foreign domain during handoffs and reducing binding update time.

오늘날 무선 통신 기술의 급속한 발전과 이동 단말의 소형화, 고성능화가 실현됨에 따라 이동 중 데이터 통신이 가능하도록 하기 위한 연구가 활발하게 이루어지고 있다. 실시간 응용 프로그램의 사용이 늘어나면서, 이를 이동 단말에서 원활하게 제공받기 위해서는 이동 단말의 이동성을 효율적으로 관리하는 것이 매우 중요하다. 본 논문에서는 IETF에서 개발한 Mobile IPv6를 기반으로 지역적 이동성 기능을 제공하기 위하여 이동 노드의 기능을 강화한 방안을 제안하고 해석적 분석과 모의실험을 통하여 성능을 분석하였다. 본 논문에서 제안한 방안은 이동단말이 외부 도메인 내에서 핸드오프 시 바인딩 메시지를 지역 내에서 처리하여 자신의 위치를 갱신하는 시간을 감소시킴으로써 Mobile IPv6보다 패킷 손실을 줄이고 TCP 처리율을 높임을 알 수 있었다.

Keywords

References

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