IMT-2000망 핵심기술은 mobile IP를 이용하는 북미의 3G packet data system과 GSM망과 연계를 하는 유럽의 GPRS로 구분할 수 있다. 이러한 IMT-2000망 핵심기술은 글로벌한 로밍을 위해 Mobile IP도입을 추진하고 있다. Mobile IP상에서는 RADIUS나 DIAMETER같은 AAA 서버가 다이얼 업 컴퓨터의 인증, 허가 서비스를 제공하기 위해 사용되고 있는데, 이것은 MN에게 매우 중요하다. Mobile IP는 MN과 HA간에 강력한 인증을 요구하기 때문이다. 본 논문에서는 이러한 IMT-2000 환경에서 고려되고 있는 Smooth Handoff 기법에서 효과적인 AAA프로토콜의 적용에 관하여 논한다.
KSP Keywords
IMT-2000, Smooth handoff, packet data
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