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Optimal Mobility Management of PCNs Using Two Types of Cell Residence Time  

홍정식 (서울산업대학교 산업정보시스템공학과)
장인갑 (서울대학교 산업공학과)
이창훈 (서울대학교 산업공학과)
Publication Information
Journal of the Korean Operations Research and Management Science Society / v.27, no.3, 2002 , pp. 59-74 More about this Journal
Abstract
This study investigates two basic operations of mobility management of PCNs (Personal Communication Networks), i.e., the location update and the paging of the mobile terminal. From the realistic consideration that a user either moves through several cells consecutively or stays in a cell with long time, we model the mobility pattern by introducing two types of CRT (Cell Residence Time). Mobility patterns of the mobile terminal are classified Into various ways by using the ratios of two types of CRT. Cost analysis is performed for distance-based and movement-based location update schemes combined with blanket polling paging and selective paging scheme. It is demonstrated that in a certain condition of mobility pattern and call arrival pattern, 2-state CRT model produces different optimal threshold and so, is more effective than IID ( Independently-Identically-Distributed) CRT model. An analytical model for the new CRT model is compact and easily extendable to the other location update schemes.
Keywords
Personal Communication Networks; location update; paging; Markov model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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