Observations on Equation-based Estimation of TCP-compatible Rate for Multi-rate Multicast Scenarios
Key: RSS03-1
Author: Ivica Rimac, Jens Schmitt, Ralf Steinmetz
Date: November 2003
Kind: In proceedings
Book title: Proceedings of the International Workshop on Multimedia Interactive Protocols and Systems ({MIPS} 2003)
Abstract: In this paper, we investigate the applicability of the equation-based approach to TCP-fair rate estimation for multi-rate multicast rate adaptation and congestion control in principle. The benefit of such an approach is two-fold: on the one hand, participating receivers might base their join and leave decisions on the calculated rate, instead of probing for the appropriate subscription level; on the other hand, the sender side might adapt and optimize the data rates according to receivers' feedback. We analyze the characteristics of the underlying rate calculation model, instead of investigating one particular protocol. Therefore, we adopt an already existing algorithm utilized for closed-loop control, which has been validated in several published studies. Through extensive simulations we evaluate the behavior of the algorithm for different multiplexing levels at different transmission rates and timescales.
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