Experimental queueing analysis with long-range dependent packet traffic
IEEE/ACM Transactions on Networking (TON)
The GBAR source model for VBR videoconferences
IEEE/ACM Transactions on Networking (TON)
A new modeling approach of H.263+ VBR coded video sources in ATM networks
Real-Time Imaging - Special issue on real-time digital video over multimedia networks
Estimation of parameters and eigenmodes of multivariate autoregressive models
ACM Transactions on Mathematical Software (TOMS)
Simulation Modeling and Analysis
Simulation Modeling and Analysis
A Steady Source Model for VBR Video Conferences
ITCC '03 Proceedings of the International Conference on Information Technology: Computers and Communications
AR-based quadratic modeling for GOP MPEG-encoded video traffic in ATM networks
Computer Communications
Modeling and simulation of broadband satellite networks. II. Traffic modeling
IEEE Communications Magazine
A refined version of M/G/∞ processes for modelling VBR video traffic
Computer Communications
Basic characteristics of variable rate video coding in ATM environment
IEEE Journal on Selected Areas in Communications
Statistics of video signals for viewphone-type pictures
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
An analytically tractable model for video conference traffic
IEEE Transactions on Circuits and Systems for Video Technology
Efficient modeling of VBR MPEG-1 coded video sources
IEEE Transactions on Circuits and Systems for Video Technology
Statistical analysis and simulation study of video teleconference traffic in ATM networks
IEEE Transactions on Circuits and Systems for Video Technology
Performance modeling of video teleconferencing in ATM networks
IEEE Transactions on Circuits and Systems for Video Technology
A new statistical model for traffic generated by VBR coders for television on the broadband ISDN
IEEE Transactions on Circuits and Systems for Video Technology
MPEG-4 and H.263 video traces for network performance evaluation
IEEE Network: The Magazine of Global Internetworking
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This manuscript is a contribution on the modeling of H.263 traffic in multipoint videoconference sessions over IP Networks. Our study includes analysis and modeling assessment of extensive data gathered during realistic videoconference sessions between commercial H.263-compliant terminal clients (with different videoconference software packages installed). All terminal clients were communicating through a Multipoint Control Unit (software or hardware MCU) at 'switched presence' mode and for comparative purposes the same typical videoconference content (a person speaking, with mild movement and occasional zoom/span) was used. The analysis of the H.263 data at the frame level suggests that the traffic from the different terminals to the MCU can be represented by a stationary stochastic process with an AutoCorrelation Function (ACF) rapidly decaying to zero and a Gamma formed marginal frame-size Probability Distribution Function (PDF). An accurate analysis of the H.263 traffic from all terminals (with the same visual content and different videoconference software used) shows indicative differences in the ACF and PDF of different terminals' traffic and insights that no generic traffic model can be applied for all cases. Aiming at a realistic, reusable and simple H.263 traffic model, conservative enough for queueing analysis and network estimation, this study discusses methods for calculating the appropriate model parameters from the observed traffic data and proposes a new technique for unconventional fitting of the PDF. The presented modeling and queueing results indicate the suitability of the proposed models for H.263 traffic modeling in IP networks.