Mobile IP는 무선 네트워크에서 단말의 이동성을 지원하기 위한 대표적인 IP 기반 프로토콜이다. 이 프로토콜은 단말의 이동 사실을 탐지하는데 소요되는 지연과 자신의 새로운 이동 위치를 홈 네트워크에 등록하는 지연 등 핸드오프 과정에서 두 가지 주요 지연요소를 가지고 있다. 본 논문은 IEEE 802.11 무선 LAN 표준에 따른 2 계층 핸드오프 처리과정을 분석하여 3 계층 핸드오프에 유용하게 적용할 수 있는 L2 트리거를 정의한다. 또한 L2 트리거와 네트워크 위상 정보를 이용하여 앵커 에이전트를 동적으로 구성하고, 다중 전송(Multiple-Casting)을 이용하여 패킷 분실을 방지하는 MCAA(Multiple- Casting using Anchor Agent) 기법을 제안한다. 제안하는 기법의 효율성을 분석하기 위해서 대표적인 마이크로 이동성 지원 기법인 Regional Registration 기법을 비교대상으로 핸드오프 지연과 패킷 분실 관점에서 분석 평가하였다.
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