ScienceDirect - Computer Networks : SRAMT: a hybrid sender and receiver-based adaptation scheme for TCP friendly multicast transmission

Computer Networks
Volume 47, Issue 4, 15 March 2005, Pages 551-575

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doi:10.1016/j.comnet.2004.09.007

SRAMT: a hybrid sender and receiver-based adaptation scheme for TCP friendly multicast transmission

Ch. Bouras ^, and A. Gkamas ¹^,

Research Academic Computer Technology Institute, Riga Feraiou 61, GR-26221 Patras, Greece Computer Engineering and Informatics Department, University of Patras, GR-26500 Patras, Achaia, Greece

Received 21 November 2003;

revised 13 September 2004;

accepted 14 September 2004.

Responsible Editor: G. Palazzo.

Available online 11 November 2004.

References and further reading may be available for this article. To view references and further reading you must purchase this article.

Abstract

In this paper, we describe a hybrid sender and receiver-based adaptation scheme for multicast transmission of multimedia data, which we call SRAMT (Sender–Receiver based Adaptation scheme for Multicast Transmission). The most prominent features of SRAMT are its distributed (to sender and receivers) transmission rate estimation algorithm and its innovative RTT (Round Trip Time) estimation algorithm based on one-way delay measurements. With the use of SRAMT, we ensure that sender will transmit TCP friendly traffic and receivers with different capabilities (in terms of available bandwidth) are able to receive the multimedia information. We evaluate SRAMT through a number of simulations and compare it with other schemes available to the literature. Main target of the simulations was the examination of SRAMT behavior to a heterogeneous group of receivers and its behavior against TCP connections.

Keywords: Multicast congestion control; Quality of Service issues; TCP friendliness; Communication protocols; Multimedia applications