Uncertain Parameters for Multicast Routing Based on a Fuzzy Number Genetic Algorithm

It is impossible for nodes in an actual dynamic network to maintain the global accurate network state information. Therefore, it is unreasonable and inefficient to express the QoS constraints with deterministic values. In this paper, the QoS multicast routing problem is solved by use of the fuzzy number model based on GA. Both imprecision of the network state information and the fuzziness of QoS constraints are taken into account invoking fuzzy set theory. A new fuzzy genetic algorithm for QoS multicast routing is also presented and simulation experiments demonstrate that the algorithm is efficient