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임성빈,Im, Seong-Bin 한국과학기술단체총연합회 1997 과학과 기술 Vol.30 No.9
과학과 신앙은 어떤 상관관계가 있는가. 신앙과 과학은 서로 반목관계에도 불구하고 양자는 모두 윤리라고 하는 부문에 이르러서는 휴전상태를 이루어왔다. 실제로 우리의 과학함은 나름대로의 패러다임, 즉 신앙에서 비롯되는 것이며 그것은 곧 과학자의 윤리성과 직결되는 것이다.
PCN 환경을 위한 Working Set 기반의 위치 관리 기법
임성빈,엄영익,Im, Seong-Bin,Eom, Yeong-Ik 한국정보처리학회 2000 정보처리논문지 Vol.7 No.4
Recently, research activities for combining portable computer technology and wireless communication technology are in progress to realize mobile computing environment that designed to support mobile hosts in the existing network environments. For PCN environments, the location management strategies are particularly emphasized among various strategies necessary for the mobile computing environment. Location management strategy for PCN environment, which is mostly based on the IS-41 standards brings an issue that additional network traffics are generated to deliver updata messages to home location server whenever a mobile host changes its location server. In this paper, we propose an innovative updata strategy and a search strategy that resolves the problem shown in the IS-41 scheme for HLR/VLR structure of CDMA environments. Also, this paper presents the performance comparison of proposed scheme and scheme used in IS-41 obtained from a simulation. The simulation was conducted based on the number of messages, the rate of database accesses, and the number of hops visited when the location management scheme is executed.
PCN 환경을 위한 Working Set 기반의 위치 관리 기법
임성빈 ( Seong Bin Im ),엄영익 ( Young Ik Eom ) 한국정보처리학회 2000 정보처리학회논문지 Vol.7 No.4
Recently, research activities for combining portable computer technology and wireless communication technology are in progress to realize mobile computing environment that designed to support mobile hosts in the existing network environments. For PCN environments, the location management strategies are particularly emphasized among various strategies necessary for the mobile computing environment. Location management strategy for PCN environment, which is mostly based on the IS-41 standards brings an issue that additional network traffics are generated to deliver updata messages to home location server whenever a mobile host changes its location server. In this paper, we propose an innovative updata strategy and a search strategy that resolves the problem shown in the IS-41 scheme for HLR/VLR structure of CDMA environments. Also, this paper presents the performance comparison of proposed scheme and scheme used in IS-41 obtained from a simulation. The simulation was conducted based on the number of messages, the rate of database accesses, and the number of hops visited when the location management scheme is executed.