TITRE Adaptive Packet Video Streaming Over IP Networks - LaBRI

5.5.1.2 Simulation Results.....................................................................................................122
5.5.2 DVMA Performance Using Network Experiments...................................................125
5.5.2.1 Edge Router Configuration .....................................................................................126
5.5.2.2 Core Router Configuration......................................................................................126
5.5.2.3 Experimental Results................................................................................................127
5.5.3 Performance Analysis of the Dynamic QoS Adaptation Model...............................132
5.5.3.1 System and Network Models ..................................................................................132
5.5.3.2 Experimental Results................................................................................................134
5.6 Conclusion .............................................................................................................................136
6 A SIP/MPEG-4 Multimedia Interworking Signaling Gateway................................ 139
6.1 Related Work .........................................................................................................................141
6.1.1 IETF SIP: Session Initiation Protocol..........................................................................141
6.1.1.1 SIP Components .......................................................................................................142
6.1.1.2 IETF SDP : Session Description Protocol ...........................................................142
6.1.1.3 IETF SAP: Session Announcement Protocol ......................................................142
6.1.1.4 SIP Communication Model.....................................................................................143
6.1.2 ISO/IEC 14496-6 (MPEG-4 DMIF) ...........................................................................143
6.1.2.1 MPEG-4 DMIF Architecture .................................................................................144
6.1.2.2 DMIF Layer ...............................................................................................................144
6.1.2.3 DAI: DMIF Application Interface.........................................................................145
6.1.2.4 DNI: DMIF Network Interface .............................................................................145
6.1.2.5 DMIF Communication Model................................................................................145
6.2 SIP/MPEG-4 DMIF Interworking Signaling Gateway Architecture ..........................146
6.2.1 SIP2DMIF Subsystem.....................................................................................................147
6.2.2 DMIF2SIP Subsystem.....................................................................................................148
6.2.3 SIP/DMIF Terminal Capability Matching...................................................................150
6.2.4 SIP/DMIF Address Conversion Model.......................................................................151
6.2.4.1 MPEG-4 DMIF Address Definition .....................................................................151
6.2.4.2 SIP Address Format..................................................................................................151
6.2.4.3 Converting SIP Address to DMIF URL ...............................................................151
6.3 Implementation Issues .........................................................................................................152
6.3.1 DMIF-SIP Interworking Signaling Gateway ...............................................................152
6.3.2 MPEG-4 DMIF Terminal...............................................................................................152
6.3.3 SIP Terminal .....................................................................................................................153
6.4 Conclusion .............................................................................................................................154
7 Conclusion and Perspectives ......................................................................................... 155
7.1 Summary of Key Result .......................................................................................................155
7.2 Open Issues and Future Work............................................................................................157
References................................................................................................................................. 159
A Appendix A: Overview of the MPEG-4 Framework ................................................ 169
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