F. Cheong and R. Lai (Australia)
Fuzzy Logic Controller, Evolutionary Algorithms, Differential Evolution, Control System, ATM
In this paper we describe the design of a Fuzzy Logic Controller (FLC) for controlling Available Bit Rate (ABR) traffic in ATM networks. ABR traffic is carried when ever bandwith is available after carrying Variable Bit Rate (VBR) and Constant Bit Rate (CBR) traffic. Although such FLCs have been previously described in the research litera ture, many of them use synthetic data and trial and error to tune them. Our work is different since we used extensive simulation and real MPEG data to generate input-output data for the optimal design of the FLC. Our design also en sures that the output of the FLC is symmetrical. We tested our design on several aggregations of real MPEG data and we found out that the output of the FLC was perfectly sym metrical and system utilization was close to 100%.
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