Proceedings of the 1996 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
On the characterization of VBR MPEG streams
SIGMETRICS '97 Proceedings of the 1997 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
RCBR: a simple and efficient service for multiple time-scale traffic
IEEE/ACM Transactions on Networking (TON)
Flexible Multiplexing in MPEG-4 Systems
IDMS '98 Proceedings of the 5th International Workshop on Interactive Distributed Multimedia Systems and Telecommunication Services
Statistical properties of MPEG video traffic and their impact on traffic modeling in ATM systems
LCN '95 Proceedings of the 20th Annual IEEE Conference on Local Computer Networks
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As MPEG-4 uses objects, to compose scenes and each object is transmitted using one or more data streams (e.g. for audio, video base, and video enhancement layers) the network overhead for a single service can be very high. MPEG-4 Systems specifies a multiplexing tool to reduce the network overhead. This multiplexer can drop frames; if the frames deadlines and the network channel QoS make a timely transmission impossible. The need to estimate the loss introduced by the multiplexer arises, even more so since MPEG-4 objects appear and disappear at random times, which increases the dynamic of the output traffic specification and QoS renegotiations.We present an approach to estimate the loss introduced by the multiplexer. The approach is based on statistical models for video and audio streams as well as for the dropping multiplexer.