Design of Fuzzy Plas Using Fuzzy Decision Diagrams

ABSTRACTFuzzy PLAs can realize fuzzy logic functions that are composed of fuzzy AND, OR, NOT, and variables. In this article, first, four meaningful special classes of the fuzzy logic functions are introduced, and two types of fuzzy PLAs are demonstrated, one is an AND-OR fuzzy PLA and the other is an AND-OR/OR-AND fuzzy PLA. Next, we introduce a Fuzzy Decision Diagram and a Fuzzy Decision Diagram with Binary Terminals to design their fuzzy PLAs. We compare the column number on realizing their functions and clarify that an AND-OR/OR-AND fuzzy PLA has an advantage of hardware cost in the viewpoint of the requiring plane area.