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김기천 건국대학교 산업기술연구원 1999 건국기술연구논문지 Vol.24 No.-
The two significant changes in the computing technology in 1990's are the popularity of the the mobile computers and mobile communication. The users of the mobile computers and mobile communication systems can overcome the restrictions on the mobility of the wired network communication. Considering the future high-speed communications, internet could be the best answer to expand the wireless network to the neighboring fixed network and information network. As a result, in order to seamlessly interconnect the multiple wireless network and to support the fixed and mobile hosts of various types in a wireless environment, internet(web) access gets focus as a proper networking infrastructure. In this paper, I explain the concepts of the mobile computing and its future. I also give some research result regarding the network structures to support mobility. The current movement in the IETF and the future directions of the Mobile IP is introduced and give some basic idea on the web access while changing the locations by commenting on WAP and WAE.
Multi - Service 지원을 위한 HDR의 MAC Protocol
김기천,이은경 에스케이텔레콤 (주) 2000 Telecommunications Review Vol.10 No.6
최근 다양해져 가는 multimedia contents를 Mobile Network상에서 서비스하기 위한 노력이 각종 표준화기구에서 이루어지고 있다. 본 논문에서는 고속 무선 통신 기술인 HDR(High Data Rate)이 효율적이고 신뢰성있는 서비스를 제공하기 위해 사용하는 Medium Access Control Protocol을 분석해보고 다양한 서비스를 지원함에 있어 개별적인 서비스의 품질(Quality of Service)을 보장하기 위한 방안과 전송효율을 높이는 방안을 제시한다.