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dc.contributor.authorLin, YBen_US
dc.contributor.authorHwang, SYen_US
dc.date.accessioned2014-12-08T15:02:53Z-
dc.date.available2014-12-08T15:02:53Z-
dc.date.issued1996-02-01en_US
dc.identifier.issn0018-9545en_US
dc.identifier.urihttp://dx.doi.org/10.1109/25.481828en_US
dc.identifier.urihttp://hdl.handle.net/11536/1481-
dc.description.abstractThe cache scheme has been proposed to reduce the location tracking overhead of a personal communications services (PCS) network. In the previous papers, we studied the cache scheme under the assumptions that the home location register (HLR) access time is constant and the portable residence times have an exponential distribution. This paper compares the cache scheme with a basic scheme (such as IS-41). We generalize the previous models by considering the queueing effect of the HLR (i.e., we model the HLR by an M/G/1 queue) and by considering an arbitrary distribution for the portable residence times, Our study shows that the cache scheme is likely to outperform the basic scheme when 1) the net traffic to the HLR in the basic scheme saturates and the hit ratio in the cache scheme is larger than zero, 2) the portable mobility is low with respect to the call arrival rate, and 3) the variance of the HLR service time distribution is large (for a fixed mean service time). We also indicate an intuitive result that the cache hit ratio is high for a high call arrival rate and low portable mobility. For a fixed mean portable residence time, we show that a higher cache hit ratio is expected for a portable residence distribution with larger variance.en_US
dc.language.isoen_USen_US
dc.titleComparing the PCS location tracking strategiesen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/25.481828en_US
dc.identifier.journalIEEE TRANSACTIONS ON VEHICULAR TECHNOLOGYen_US
dc.citation.volume45en_US
dc.citation.issue1en_US
dc.citation.spage114en_US
dc.citation.epage121en_US
dc.contributor.department交大名義發表zh_TW
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentNational Chiao Tung Universityen_US
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:A1996TV75700014-
dc.citation.woscount13-
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