Abstract
In this paper we describe a hybrid sender and receiver-based adaptation scheme for multicast transmission of multimedia data using layered encoding, which we call SRAMT-LE (Sender-Receiver based Adaptation scheme for Multicast Transmission using Layered Encoding). The most prominent features of SRAMT-LE 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. SRAMT-LE is using both a TCP model and an AIMD (Additive Increase Multiplicative Decrease) algorithm in order to estimate a TCP friendly bandwidth share. We evaluate SRAMT-LE and compare it with a number of similar layered encoding schemes available to the literature (PLM, RLC, MLDA). Main conclusion of this evaluation was that SRAMT-LE has friendly behavior against the dominant traffic types of today’s Internet and has a relative good behavior comparing with the other layered encoding schemes available to the literature.
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