Abstract: In this paper, a multipath-ranking scheme has been proposed based on fuzzy logic if multiple paths are known. The algorithm is based on the assumption that link utilization of each link in the identified paths is known. This paper aims to find the link utilization of complete path using fuzzy controller. The fuzzy metric provides a more precise estimate of how good a path is for future traffic. The output of the fuzzy controller is the path link utilization value on the basis of which paths are ranked.

Keywords: Fuzzy controller, Link utilization, Multipath routing, Path ranking.