한국통신학회논문지 B : 네트워크 및 융합 서비스, v.30, no.6C, pp.601-606
ISSN
1226-4717
Publisher
한국통신학회 (KICS)
Language
Korean
Type
Journal Article
Abstract
무선랜 상에서 실시간 음성 서비스 제공에 대한 기대가 높아지면서, 무선랜 접속장치에 빠르고 안전한 이동성 지원 기술을 구현하는 문제는 최근 가장 활발히 연구되고 있는 분야 중 하나이다 . 이동 단말이 새로운 접속장치로 이동하더라도 과거 접속장치로부터 제공 받던 보안 강도를 지속적으로 유지하면서 이동 지연시간을 최소화하는 문제는 매우 중요하다. 따라서 본 논문은 IEEE802.11i, 802.1x, 그리고 802.11f를 지원하는 무선랜에서 접속점 보안 천이시간을 시스템 성능 변수로 정의하고, 평균적 천이 지연시간의 최소화를 목적 함수로 하는 보안 메커니즘과 그 실현을 위한 유한 상태 머신을 제안한다. 실험 결과 제안된 보안 메커니즘이 기존의 802.1X인증 방식에 비하여 79% 까지의 성능 이득이 기대됨을 보인다.
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