Design of a fuzzy usage parameter controller (FUPC) for ATM networks

This paper presents the design of a fuzzy usage parameter controller (FUPC) for ATM (asynchronous transfer mode) networks. The usage parameter control (UPC) is here based on a dual leaky bucket (DLB) mechanism, with parameters of token generation rate and token pool size. In FUPC, we further employ parameters of token-change rate and interarrival time of incoming cells as input linguistic variables to reflect the usage situation in advance. Simulation results reveal that the proposed FUPC possesses a shorter response time to detect violation cells, keeps the output rate of the user close to the declared usage parameters, and thus achieves more precise control than DLB