| Summary: | 碩士 === 中華大學 === 電機工程學系碩士班 === 88 === As the computer and networking technologies advance at a fast pace in recent years, the traffic control plays a more and more important role in high-speed networks. Most traffic controller design on high speed networks are based on the source modeling, which can suffer from some limitations. In addition to the burst characteristic of the traffic, there are many uncertainties in the design process. In recent years, there are more and more applications of Soft Computing in the control problems, but less for the communication network control. Therefore, in this thesis we apply fuzzy logic to the ATM traffic control. Firstly, we propose a fuzzy logic based call admission control (CAC). Secondly, we present a fuzzy adaptive traffic flow controller (FATFC), which adaptively tunes the bandwidth of the sources to achieve the global QoS. Simulation results exhibit that the proposed CAC and FATFC guarantee the usual QoS requirement and achieve high system utilization.
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