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dc.contributor.authorChang, MFen_US
dc.contributor.authorYang, WZen_US
dc.contributor.authorLin, YBen_US
dc.date.accessioned2014-12-08T15:42:27Z-
dc.date.available2014-12-08T15:42:27Z-
dc.date.issued2002-05-01en_US
dc.identifier.issn0018-9545en_US
dc.identifier.urihttp://dx.doi.org/10.1109/TVT.2002.1002508en_US
dc.identifier.urihttp://hdl.handle.net/11536/28830-
dc.description.abstractIn the recent years, mobile prepaid service has become an important mobile application with rapid growth of subscription rate. The most widely deployed prepaid solution today is the service node approach that deducts and updates the prepaid credit during a phone call. Implementation of the service node approach may generate large number of credit checks that significantly degrades the performance of a service node. We investigate how the number of credit checks affects the workload of the service node and the bad debt that a service provider may bear. We propose an analytic model to derive the optimal credit checking/updating frequency for the service node approach. The analytic analysis is validated against simulation experiments. Our study indicates that the number of credit checks increases rapidly when the call pattern is irregular. We also observe that in order to reduce the checking cost of the service node, the prepaid service provider should encourage the customer to make long calls by giving them discounts.en_US
dc.language.isoen_USen_US
dc.subjectglobal system for mobile communications (GSM)en_US
dc.subjectmobile phone networken_US
dc.subjectprepaid serviceen_US
dc.subjectservice nodeen_US
dc.titlePerformance of service-node-based mobile prepaid serviceen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/TVT.2002.1002508en_US
dc.identifier.journalIEEE TRANSACTIONS ON VEHICULAR TECHNOLOGYen_US
dc.citation.volume51en_US
dc.citation.issue3en_US
dc.citation.spage597en_US
dc.citation.epage612en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000175663500019-
dc.citation.woscount6-
Appears in Collections:Articles


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