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dc.contributor.authorChen, Whai-Enen_US
dc.contributor.authorLin, Pin-Jenen_US
dc.date.accessioned2014-12-08T15:48:42Z-
dc.date.available2014-12-08T15:48:42Z-
dc.date.issued2010-08-01en_US
dc.identifier.issn1074-5351en_US
dc.identifier.urihttp://dx.doi.org/10.1002/dac.1071en_US
dc.identifier.urihttp://hdl.handle.net/11536/32377-
dc.description.abstractA Next Generation Network (NGN) is an advanced, packet-based network that exploits broadband and QoS-enabled transport technologies for enabling multimedia services. In NGNs, the principles and requirements of IP Multimedia Sub-system (IMS), which are used to deliver the desired benefits, should be carefully examined and studied. Internet Protocol version 6 (IPv6) is adopted by Third-generation Partnership Project (3GPP) to solve address storage problem and provide new features (e.g. plug-and-play and mobility) for IMS. However, in the early stage of IPv6 deployment, the existing Voice-over-IP (VoIP) networks support Internet Protocol version 4 (IPv4) only. For IPv4 IPv6 interworking between IMS and the existing VoIP networks, the IMS-Application Level Gateway (IMS-ALG) and the Transition Gateway (TrGW) are proposed to translate Session Initiation Protocol (SIP) and Real-time Transport Protocol (RTP) packets, respectively. In this paper, we focus on the IPv4 IPv6 translation for RTP packets, which is the bottleneck of VolP performance. Specifically, we developed a TrGW called National Information and Communications Initiative (NICI)-TrGW. In NICE-TrGW, we perform IPv4 IPv6 translation at the Linux kernel and adjust the header room of kernel-level packet buffer for each packet to reduce memory-copy operations. We evaluate the performance of NICI-TrGW and the existing solutions by using the SmartBits. Our study indicates that NICI-TrGW outperforms the existing solutions in terms of three different output measures including packet loss rate, maximum throughput, and average latency. Copyright (C) 2009 John Wiley & Sons, Ltd.en_US
dc.language.isoen_USen_US
dc.subjectIP Multimedia Core Network Subsystem (IMS)en_US
dc.subjectIPv4-IPv6 translationen_US
dc.subjectPortaoneen_US
dc.subjectReal-time Transport Protocol (RTP)en_US
dc.subjectSession Initiation Protocol (SIP)en_US
dc.subjectTransition Gateway (TrGW)en_US
dc.titleA performance study for IPv4-IPv6 translation in IP multimedia core network subsystemen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/dac.1071en_US
dc.identifier.journalINTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMSen_US
dc.citation.volume23en_US
dc.citation.issue8en_US
dc.citation.spage929en_US
dc.citation.epage944en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000280899700002-
dc.citation.woscount2-
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