Performance of TCP over ABR with Long-Range Dependent VBR Background Traffic over Terrestrial and Satellite ATM networks
نویسندگان
چکیده
Compressed video is well known to be self-similar in nature. We model VBR carrying long-range dependent, multiplexed MPEG-2 video sources traffic. The actual traffic for the model is generated using fast-fourier transform of the fractional gaussian noise 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 constant bit rate manner. 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 con-
منابع مشابه
Title : Performance of TCP over ABR with Long - Range Dependent VBR
We model VBR carrying Long-Range Dependent (LRD), multiplexed video sources. We study the effect of such VBR traffic on ABR carrying TCP traffic. Our model of compressed video sources bears some similarity to an MPEG-2 Transport Stream carrying video, i.e., it is long-range dependent [1] and generates traffic in a piecewise-CBR fashion [2]. The effect of such VBR traffic is that the ABR capacit...
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