Full metadata record
DC FieldValueLanguage
dc.contributor.authorLin, Yi-Bingen_US
dc.date.accessioned2014-12-08T15:24:29Z-
dc.date.available2014-12-08T15:24:29Z-
dc.date.issued1996-06-01en_US
dc.identifier.issn1022-0038en_US
dc.identifier.urihttp://hdl.handle.net/11536/16991-
dc.description.abstractA life-time Universal Personal Telecommunication (UPT) number allows a user to change the Personal Communications service provider without changing his/her UPT number. Since a translation from the life-time UPT number to a routing address must be done for every call placed, it is essential to make this process efficient. Two general approaches are the table lookup method and the database query method. The life-time UPT number can be easily implemented in the database query method. However, the UPT-routing address translation cost in the database query method is much higher than in the table lookup method. Address translation can be done efficiently in the table lookup method, but pointer forwarding is required to support a life-time UPT number. To reduce the pointer forwarding cost, we modify the table lookup method by adding a cache at each cellular switch (in Taiwan, the number of cellular switches that need to equip with the caches is 8 for AMPS and 7 for GSM). We show that the cache scheme can remove most pointer forwarding operations for an originating switch if some PCS users are accessed more frequently than others.en_US
dc.language.isoen_USen_US
dc.titleA cache approach for supporting life-time UPT numberen_US
dc.typeArticleen_US
dc.identifier.journalWIRELESS NETWORKSen_US
dc.citation.volume2en_US
dc.citation.issue2en_US
dc.citation.spage155en_US
dc.citation.epage160en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000208154800006-
dc.citation.woscount4-
Appears in Collections:Articles