Connection admission control in ATM networks using survey-based type-2 fuzzy logic systems
Jerry M. Mendel, N.N. Karnik, Qilian Liang · IEEE Transactions on Systems Man and Cybernetics Part C (Applications and Reviews) · 2000
This paper presents a connection admission control (CAC) method that uses a type-2 fuzzy logic system (FLS). Type-2 FLSs can handle linguistic uncertainties. The linguistic knowledge about CAC is obtained from 30 computer network experts. A methodology for representing the linguistic knowledge using type-2 membership functions and processing surveys using type-2 FLS is proposed. The type-2 FLS provides soft decision boundaries, whereas a type-1 FLS provides a hard decision boundary. The soft decision boundaries can coordinate the cell loss ratio (CLR) and bandwidth utilization, which is impossible for the hard decision boundary.