Journal of the Korean Data and Information Science Society

The Korean Data and Information Science Society (한국데이터정보과학회)
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Modeling and performance analysis of movement-based registration considering implicit registration effect of outgoing calls

발신호의 묵시적 위치등록 효과를 고려한 이동기준 위치등록의 모형화 및 성능 분석

  • Suh, Jae-Joon (Department of Industrial & Management Engineering, Hanbat National University) ;
  • Lee, Tae-Han (Department of Industrial & Information Systems Engineering, Chonbuk National University) ;
  • Baek, Jang-Hyun (Department of Industrial & Information Systems Engineering, Chonbuk National University)
  • 서재준 (한밭대학교 산업경영공학과) ;
  • 이태한 (전북대학교 산업정보시스템공학과) ;
  • 백장현 (전북대학교 산업정보시스템공학과)
  • Received : 2010.09.16
  • Accepted : 2010.11.22
  • Published : 2010.11.30
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Abstract

This study considers movement-based registration (MBR). In MBR, a mobile station (MS) performs location registration whenever the number of entering cells reaches the specified movement threshold M. MBR is simple and its implementation is quite straightforward. However, it may result in more registrations than other similar schemes. An improved MBR scheme called MBIR (MBR with implicit registration) was proposed to reduce registration cost of MBR and its approximated performance was analyzed. In this study, we point out some problems of the previous analysis method and propose an exact analysis method of MBIR. Using the exact analysis method, we show that the previous analysis includes considerable errors and improvement of MBIR in our study seems to be larger than in the previous study.

본 연구에서는 이동기준 위치등록을 고려한다. 이동기준 위치등록에서는 미리 정해진 특정 개수의 셀에 진입할 때마다 새로 위치등록을 수행한다. 이동기준 위치등록은 구현이 용이하다는 장점이 있으나 다른 위치등록 방법에 비하여 위치등록이 자주 발생하는 경향이 있다. 이러한 이동기준 위치 등록의 성능을 개선하기 위하여 이동기준 위치등록에 묵시적 위치등록을 결합한 방법이 제안되었다. 본 연구에서는 육각형 셀 환경 하에서 2차원 랜덤워크 이동성 모형을 기반으로 묵시적 위치등록과 결합된 이동기준 위치등록의 성능을 분석한 기존 연구의 문제점을 지적하고 그 정확한 성능을 분석하는 방법을 제시한다. 제안한 정확한 분석 방법을 이용하여 기존의 분석방법이 상당한 오차를 포함하고 있음을 보이고 정확한 분석방법을 이용할 경우 위치등록과 결합된 이동기준 위치등록의 성능 개선 효과가 기존의 분석 방법에 비하여 더욱 크게 나타남을 보인다.

Keywords

References

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