Departmental Papers (ESE)

Document Type

Journal Article

Date of this Version

April 2005

Comments

Copyright 2005 IEEE. Reprinted from IEEE/ACM Transactions on Networking, Volume 13, Issue 2, April 2005, pages 370-383.

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Abstract

This paper explores the differences that can exist between individual and aggregate loss guarantees in an environment where guarantees are only provided at an aggregate level. The focus is on understanding which traffic parameters are responsible for inducing possible deviations and to what extent. In addition, we seek to evaluate the level of additional resources, e.g., bandwidth or buffer, required to ensure that all individual loss measures remain below their desired target. This paper's contributions are in developing analytical models that enable the evaluation of individual loss probabilities in settings where only aggregate losses are controlled, and in identifying traffic parameters that have a major influence on the differences between individual and aggregate losses. The latter allows us to further construct tools and guidelines that are able to determine what kind of traffic can be safely multiplexed in practice into a common service class.

Keywords

Network, Aggregate, QoS, aggregation, loss, quality of service

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Date Posted: 26 July 2005

This document has been peer reviewed.