The burst factor and its impact on buffer performance |
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Authors: | Bart Steyaert Dieter Claeys Herwig Bruneel |
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Affiliation: | SMACS Research Group, Department TELIN (IR07), Ghent University – UGent, Sint-Pietersnieuwstraat 41, B-9000 Gent, Belgium |
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Abstract: | In this contribution we introduce the burst factor, which is defined in a general setting, and quantifies the long-term variability, or burstiness, of a packet source. By means of a combination of analytic and simulation results, we will demonstrate that this parameter plays an important role in the calculation of the moments of the amount of work in a buffer, both in a scenario where (a superposition of) MPEG-4 video traces are used as input of the buffer, as well as when the (correlated) arrivals are generated by a stochastic model. As such, the burst factor is a key parameter for buffer dimensioning purposes. |
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Keywords: | Performance evaluation Source burstiness Buffer dimensioning Traffic modelling |
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