A survey of transport layer protocols suited for real-time data delivery over Diffserv-capable networks

Y. Noda, T. Sakai, Hiroshi Shigeno, K. Okada, Y. Matsushita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

As the Internet evolves toward the global multiservice network of the future, a key consideration is the support for services with guaranteed quality of service (QoS). The current Internet has a number of barriers to QoS support for real-time data delivery. The proposed differentiated services (Diffserv) framework is seen as the key technology to achieve this. This paper examines standard transport layer protocols, i.e. UDP and TCP, suited for real-time data delivery over Diffserv-capable networks where bandwidth guarantees are provided. We designed a streaming video application that buffers a portion of data on the receiver before starting the playback and operates in a streaming mode. Streaming media applications currently used in the Internet adopt UDP because of the general belief that TCP's reliable delivery mechanisms, such as congestion control and retransmission, are unsuitable for time-sensitive delivery. However, TCP shows the better simulation results than UDP when packets are lost over Diffserv networks. In our simulation, TCP can adapt its sending rate to the guaranteed bandwidth and the buffer on the receiver allows TCP to retransmit lost packets before the playback. As for TCP, the employment of SACK option that can recover lost packets efficiently contributes to a better performance.

Original languageEnglish
Title of host publicationProceedings - 22nd International Conference on Distributed Computing Systems Workshops, ICDCSW 2002
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages305-310
Number of pages6
Volume2002-January
ISBN (Electronic)0769515886
DOIs
Publication statusPublished - 2002
Event22nd International Conference on Distributed Computing Systems Workshops, ICDCSW 2002 - Vienna, Austria
Duration: 2002 Jul 22002 Jul 5

Other

Other22nd International Conference on Distributed Computing Systems Workshops, ICDCSW 2002
CountryAustria
CityVienna
Period02/7/202/7/5

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

Cite this

Noda, Y., Sakai, T., Shigeno, H., Okada, K., & Matsushita, Y. (2002). A survey of transport layer protocols suited for real-time data delivery over Diffserv-capable networks. In Proceedings - 22nd International Conference on Distributed Computing Systems Workshops, ICDCSW 2002 (Vol. 2002-January, pp. 305-310). [1030786] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICDCSW.2002.1030786