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Evaluation of the QoS Offered by PRTP-ECN - A TCP-Compliant Partially Reliable Transport Protocol

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Quality of Service — IWQoS 2001 (IWQoS 2001)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 2092))

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Abstract

The introduction of multimedia in the Internet imposes new QoS requirements on existing transport protocols. Since neither TCP nor UDP comply with these requirements, a common approach today is to use RTP/UDP and to relegate the QoS responsibility to the application. Even though this approach has many advantages, it also entails leaving the responsibility for congestion control to the application. Considering the importance of efficient and reliable congestion control for maintaining stability in the Internet, this approach may prove dangerous. Improved support at the transport layer is therefore needed. In this paper, a partially reliable transport protocol, PRTP-ECN, is presented. PRTP-ECN is a protocol designed to be both TCP-friendly and to better comply with the QoS requirements of applications with soft real-time constraints. This is achieved by trading reliability for better jitter characteristics and improved throughput. A simulation study of PRTP-ECN has been conducted. The outcome of this evaluation suggests that PRTPECN can give applications that tolerate a limited amount of packet loss significant reductions in interarrival jitter and improvements in throughput as compared to TCP. The simulations also verified the TCP-friendly behavior of PRTP-ECN.

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Author information

Authors and Affiliations

  1. Ericsson Infotech AB, Lagergrens gata 4, SE-651 15, Karlstad, Sweden

    Karl-Johan Grinnemo

  2. Dept. of Computer Science, Karlstad University, SE-651 88, Karlstad, Sweden

    Anna Brunstrom

Authors
  1. Karl-Johan Grinnemo
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  2. Anna Brunstrom
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Editor information

Editors and Affiliations

  1. Faculty of Informatics and Computing Center Institute of Telematics, University of Karlsruhe, Zirkel 2, 76128, Karlsruhe, Germany

    Lars Wolf

  2. Faculty of Applied Sciences, Computing Department, Lancaster University, Lancaster, LA1 4YR, UK

    David Hutchison

  3. GMD IPSI, German National Research Center for Information Technology Integrated Publication and Information Systems, Dolivostr. 15, 64293, Darmstadt, Germany

    Ralf Steinmetz

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© 2001 Springer-Verlag Berlin Heidelberg

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Grinnemo, KJ., Brunstrom, A. (2001). Evaluation of the QoS Offered by PRTP-ECN - A TCP-Compliant Partially Reliable Transport Protocol. In: Wolf, L., Hutchison, D., Steinmetz, R. (eds) Quality of Service — IWQoS 2001. IWQoS 2001. Lecture Notes in Computer Science, vol 2092. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45512-4_16

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  • DOI: https://doi.org/10.1007/3-540-45512-4_16

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-42217-4

  • Online ISBN: 978-3-540-45512-7

  • eBook Packages: Springer Book Archive

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