Abstract
We propose a traffic modeling, (σ,ρ,ξ)-model, which is suitable for QoS provisioning with hard bound on performance degradation. ξ in (σ,ρ,ξ)-model defines the portion of data that fails to conform to the (σ,ρ)-constraint. An exact analysis of a discrete-time non-buffered token bucket is presented to introduce the (σ,ρ,ξ)-model. The analysis is verified through simulations, and is shown to be more accurate than a fluid model approach. The applicability of the (σ,ρ,ξ)-model is examined in the assessment of the required resources for aggregate VoIP traffic. It is observed that the allowance of bounded degradation enhances the resource utilization significantly. We also observe that the buffer adjustment is preferable to the bandwidth adjustment in accommodating a variety of traffic burstiness.
This work was supported by grant No.R01-2000-00280 from the Korea Science and Engineering Foundation.
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© 2003 Springer-Verlag Berlin Heidelberg
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Jeong, D. (2003). A VoIP Traffic Modeling for the Differentiated Services Network Architecture. In: Kahng, HK. (eds) Information Networking. ICOIN 2003. Lecture Notes in Computer Science, vol 2662. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45235-5_51
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DOI: https://doi.org/10.1007/978-3-540-45235-5_51
Publisher Name: Springer, Berlin, Heidelberg
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