Computer Science – Networking and Internet Architecture
Scientific paper
1998-09-23
Computer Science
Networking and Internet Architecture
Proceedings of LCN `98
Scientific paper
Compressed video is well known to be self-similar in nature. We model VBR carrying Long-Range Dependent (LRD), multiplexed MPEG-2 video sources. The actual traffic for the model is generated using fast-fourier transform of generate the fractional gaussian noise (FGN) sequence. Our model of compressed video sources bears similarity to an MPEG-2 Transport Stream carrying video, i.e., it is long-range dependent and generates traffic in a piecewise-CBR fashion. We study the effect of such VBR traffic on ABR carrying TCP traffic. The effect of such VBR traffic is that the ABR capacity is highly variant. We find that a switch algorithm like ERICA+ can tolerate this variance in ABR capacity while maintaining high throughput and low delay. We present simulation results for terrestrial and satellite configurations.
Fahmy Sonia
Goyal Rohit
Jain Raj
Kalyanaraman Shivkumar
Kim Seong-Cheol
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