Performance evaluation of a fuzzy-based QoS support implementation

The task of Quality-of-Service (QoS) routing is to find a path in the network that satisfies certain constraints on metrics such as delay, jitter, bandwidth and packet loss. All routing algorithms are designed for intra-domain QoS support, and when multiple technologies are interconnected, a proper end-to-end QoS support cannot be guaranteed. This paper proposes a method for the most suitable end-to-end path selection in a unified network architecture. The solution is implemented in two phases: firstly, the network is tested in order to obtain a list of all possible routes and secondly, the best path is selected using the fuzzy logic algorithm. This solution has been implemented and validated through network simulations.