Full metadata record
DC FieldValueLanguage
dc.contributor.authorChueh, HSen_US
dc.contributor.authorWang, KCen_US
dc.date.accessioned2014-12-08T15:26:07Z-
dc.date.available2014-12-08T15:26:07Z-
dc.date.issued2003en_US
dc.identifier.isbn0-7803-7954-3en_US
dc.identifier.issn1090-3038en_US
dc.identifier.urihttp://hdl.handle.net/11536/18510-
dc.description.abstractIn this paper, we present an all-MPLS approach for UMTS 3G core networks. GTP-tunnel has been defined by 3GPP as the transport mechanism for UMTS. For each packet transmission, extra GTP, UDP, and IP headers (40-byte) are required. For short packets, such as VoIP payloads, transmission overhead is very high. Enhanced-GTP was proposed to eliminate the need for a GTP header. Since its operation mode is limited to non-transport mode only, NAT is required in GGSN. Furthermore, its performance improvement is limited, because an extra IP header (20-byte) is still needed. In response to these drawbacks, we propose to integrate MPLS technology to UNITS 3G core networks. We use MPLS-tunnel as the transport mechanism by using two-level MPLS labels (8-byte) to replace the GTP-tunnel. To the best of our knowledge, this is a novel approach, since no MPLS-based approach was ever proposed for UMTS 3G core networks. Our approach is feasible, since more and more routers are MPLS-capable. By reducing header overhead from 40-byte to 8-byte, our new approach improves transmission efficiency from 56.5% similar to 63% to 86.6% similar to 89.5% for VoIP payloads and also enhance packet forwarding efficiency. In addition, our all-MPLS approach offers better load balancing, better service resilience, and better QoS support, compared to existing approaches.en_US
dc.language.isoen_USen_US
dc.subjectUMTSen_US
dc.subjectcore networksen_US
dc.subjectGPRSen_US
dc.subjectGTP-tunnelen_US
dc.subjectMPLS-tunnelen_US
dc.subjecttraffic engineeringen_US
dc.subjectQoSen_US
dc.titleAn All-MPLS approach for UMTS 3G core networksen_US
dc.typeProceedings Paperen_US
dc.identifier.journal2003 IEEE 58TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS1-5, PROCEEDINGSen_US
dc.citation.spage2338en_US
dc.citation.epage2342en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000221662300472-
Appears in Collections:Conferences Paper