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Statistical bandwidth sharing: a study of congestion at flow level

Published: 27 August 2001 Publication History

Abstract

In this paper we study the statistics of the realized throughput of elastic document transfers, accounting for the way network bandwidth is shared dynamically between the randomly varying number of concurrent flows. We first discuss the way TCP realizes statistical bandwidth sharing, illustrating essential properties by means of packet level simulations. Mathematical flow level models based on the theory of stochastic networks are then proposed to explain the observed behavior. A notable result is that first order performance (e.g., mean throughput) is insensitive with respect both to the flow size distribution and the flow arrival process, as long as "sessions" arrive according to a Poisson process. Perceived performance is shown to depend most significantly on whether demand at flow level is less than or greater than available capacity. The models provide a key to understanding the effectiveness of techniques for congestion management and service differentiation.

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      Published In

      cover image ACM SIGCOMM Computer Communication Review
      ACM SIGCOMM Computer Communication Review  Volume 31, Issue 4
      Proceedings of the 2001 SIGCOMM conference
      October 2001
      275 pages
      ISSN:0146-4833
      DOI:10.1145/964723
      Issue’s Table of Contents
      • cover image ACM Conferences
        SIGCOMM '01: Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
        August 2001
        298 pages
        ISBN:1581134118
        DOI:10.1145/383059
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Association for Computing Machinery

      New York, NY, United States

      Publication History

      Published: 27 August 2001
      Published in SIGCOMM-CCR Volume 31, Issue 4

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      • (2023)Distributed Resource Allocation and Flow Control Algorithms for mmWave IAB NetworksIEEE/ACM Transactions on Networking10.1109/TNET.2023.327334931:6(3175-3190)Online publication date: Dec-2023
      • (2023)Data Transfer for Balancing Model Convergence and Training Time in Federated LearningGLOBECOM 2023 - 2023 IEEE Global Communications Conference10.1109/GLOBECOM54140.2023.10437284(6777-6782)Online publication date: 4-Dec-2023
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