Comparing network performance for constant and variable bit rate sources
Computer Communications
CRMA MAC protocol: A simulative analysis
Computer Communications
VBR video traffic management using a predictor-based architecture
Computer Communications
Traffic policing in ATM networks with multimedia traffic: the super leaky bucket
Computer Communications
A novel scheme of transporting pre-stored MPEG video to support video-on-demand (VoD) services
Computer Communications
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The authors extend earlier work (ibid., vol.36, p.834-44, Jul. 1988) in modeling video sources using interframe coding schemes and in carrying out buffer queueing analysis for the multiplexing of several such sources. The previous models and analysis were suitable for relatively uniform activity scenes. Here, models are considered for scenes with multiple activity levels which lead to sudden changes in the coder output bit rates. Such models apply to talker-listener alternating scenes, as well as to situations where there is a mix of dissimilar services, e.g., television and videotelephony. Correlated Markov models for the corresponding sources are given. A flow-equivalent queueing analysis is used to obtain common buffer queue distributions and probabilities of packet loss. The results demonstrate the efficiency of packet video on a single link, due to the smoothing effect of multiplexing several variable-bit-rate video sources