IE interfaces (산업공학)

Korean Institute of Industrial Engineers (대한산업공학회)
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A New Mobility Modeling and Comparisons of Various Mobility Models in Zone-based Cellular Networks

영역 기준 이동통신망에서 이동성의 모형화 및 모형들의 비교 분석

  • Hong, J.S. (Department of Industrial & Information Systems Engineering Seoul National University of Technology) ;
  • Chang, I.K. (Department of Industrial Engineering Seoul National University Seoul) ;
  • Lee, J.S. (Department of Industrial Engineering Seoul National University Seoul) ;
  • Lie, C.H. (Department of Industrial Engineering Seoul National University Seoul)
  • 홍정식 (서울산업대학교 산업정보시스템공학과) ;
  • 장인갑 (서울대학교 산업공학과) ;
  • 이진승 (서울대학교 산업공학과) ;
  • 이창훈 (서울대학교 산업공학과)
  • Published : 2010.12.31
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Abstract

Objective of this paper is to develop the user mobility model(UMM) which is used for the performance analysis of location update and paging algorithm and at the same time, consider the user mobility pattern(UMP) in zone-based cellular networks. User mobility pattern shows correlation in space and time. UMM should consider these correlations of UMP. K-dimensional Markov chain is presented as a UMM considering them where the states of Markov chain are defined as the current location area(LA) and the consecutive LAs visited in the path. Also, a new two dimensional Markov chain composed of current LA and time interval is presented. Simulation results show that the appropriate size of K in the former UMM is two and the latter UMM reflects the characteristic of UMP well and so is a good model for the analytic method to solve the performance of location update and paging algorithm.

Keywords