Analysis of a TCP system under polling-type reduction-signal procedures
نویسندگان
چکیده
The performance of a Transmission Control Protocol (TCP) for a system with N connections sharing a common Active Queue Management (AQM) is analyzed for both AdditiveIncrease Multiplicative-Decrease (AIMD) and MultiplicativeIncrease Multiplicative-Decrease (MIMD) control mechanisms, where reduction signals follow either a cyclic or a probabilistic polling-type procedure. The Laplace-Stieltjes Transforms (LST) of the transmission rate of each connection at a polling instant, as well as at an arbitrary moment, are derived. Explicit results are calculated for the mean rate and (in contrast to most polling models) for its second moment. The analysis of the probabilistic MIMD models uses transformations yielding a system’s law of motion equivalent to that of an M/G/1 queue with bulk service.
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