SRAMT-S: A Hybrid Sender And Receiver-Based Adaptation Scheme For TCP Friendly Multicast Transmission Using Simulcast Approach

Abstract

In this paper, we describe a hybrid sender and receiver-based adaptation scheme for multicast transmission of multimedia data using the simulcast approach, which we call SRAMT-S (Sender-Receiver based Adaptation scheme for Multicast Transmission using Simulcast). The most prominent features of SRAMT-S are its distributed (to sender and receivers) transmission rate estimation algorithm and its innovative WIT (Round Trip Time) estimation algorithm based on one-way delay measurements. SRAMT-S is using both an AIMD algorithm and a TCP model in order to estimate a TCP friendly bandwidth share. We evaluate SRAMT-S through a number of simulations in order to examine its behaviour to a heterogeneous group of receivers and its behaviour against TCP connections. Main conclusion of the simulation was that SRAMT-S has friendly behaviour against the dominant traffic types of today’s Internet and treats a heterogeneous group of receivers with fairness.Key wordsMultimedia technologies and networkingMedia streamingMulticast Congestion ControlTCP friendliness.