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dc.contributor.authorSon, Sok-Ianen_US
dc.contributor.authorHung, Hui-Nienen_US
dc.contributor.authorLin, Yi-Bingen_US
dc.contributor.authorPeng, Nan-Fuen_US
dc.contributor.authorJeng, Jeu-Yihen_US
dc.date.accessioned2014-12-08T15:13:12Z-
dc.date.available2014-12-08T15:13:12Z-
dc.date.issued2007-11-01en_US
dc.identifier.issn1536-1276en_US
dc.identifier.urihttp://dx.doi.org/10.1109/TWC.2007.060250en_US
dc.identifier.urihttp://hdl.handle.net/11536/10198-
dc.description.abstractThe IP Multimedia Core Network Subsystem (IMS) provides real-time multimedia services for Universal Mobile Telecommunications System (UMTS). Through Recharge Threshold-based Credit Reservation (RTCR) mechanism, prepaid IMS services can be supported by the Online Charging System (OCS) in UMTS. In RTCR, when the remaining amount of prepaid credit is below a threshold, the OCS reminds the user to recharge the prepaid account. It is essential to choose an appropriate recharge threshold to reduce the probability that the in-progress service sessions are forced-terminated. An analytic model is developed to investigate the performance of RTCR for the OCS. Based on our study, the network operator can select the appropriate parameter values for various traffic conditions.en_US
dc.language.isoen_USen_US
dc.subjectchargingen_US
dc.subjectIP multimedia core network subsystem (IMS)en_US
dc.subjectprepaid servicesen_US
dc.subjectuniversal mobile telecommunications system (UMTS)en_US
dc.titleModeling credit reservation procedure for UMTS online charging systemen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/TWC.2007.060250en_US
dc.identifier.journalIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONSen_US
dc.citation.volume6en_US
dc.citation.issue11en_US
dc.citation.spage4129en_US
dc.citation.epage4135en_US
dc.contributor.department統計學研究所zh_TW
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentInstitute of Statisticsen_US
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000250765800032-
dc.citation.woscount10-
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