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Comparison of Single-Rate Multicast Congestion Control Protocols vs. ASMP

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3 Author(s)
Christos Bouras ; Research Academic Computer, Technology Institute and University of Patras, bouras@cti.gr ; Apostolos Gkamas ; Georgios Kioumourtzis

We present in this paper a simulation-based comparison of two single-rate multicast congestion control schemes (TFMCC and PGMCC) against our proposed adaptive smooth multicast protocol (ASMP). ASMP consists of a single-rate multicast congestion control, which takes advantage of RTCP sender (SR) and receiver reports (RR). The innovation in ASMP lays in the "smooth" transmission rate, which is TCP-friendly and prevent oscillations. The smooth behavior is naturally well suited to multimedia applications as high oscillations of the sending rate may create distortions of audio-video (AV) encoders and decoders. Simulation results, which are conducted with the network simulator ns2 software, showed that ASMP can be regarded as a serious competitor of TFMCC and PGMCC. In many cases, ASMP outperforms TFMCC in terms of TCP-friendliness and smooth transmission rates, while PGMCC presents lower scalability than ASMP.

Published in:

2008 IEEE International Symposium on Modeling, Analysis and Simulation of Computers and Telecommunication Systems

Date of Conference:

8-10 Sept. 2008