Fuzzy Traffic Control of ATM Networks

In this paper, we will use the benefits of fuzzy logic to design a high performance traffic controller of Asynchronous Transfer Mode (ATM). In the proposed fuzzy traffic controller, the actual mean cell rate of traffic source is estimated and the traffic controller is adjusted so its loss load is equal to generated excessive load. In order to improve the channel utilization, the proposed controller uses a feedback from network to decide passing, marking or discarding the input cells. Simulation results show that the proposed fuzzy traffic controller can outperform the traditional Usage Parameter Control (UPC) mechanisms. Also, the proposed controller improves the channel utilization and demonstrates a low cell loss probability. Key-Words: ATM networks, traffic control, fuzzy control.