An ABC Supported QoS Multicast Routing Scheme Based on Ant Algorithm

In this paper, a QoS multicast routing scheme with ABC (always best connected) supported is proposed based on the ant algorithm. To deal with the inaccurate network status and the imprecise user QoS requirement, it uses the range to describe them, introduces the edge bandwidth pricing, the edge evaluation and the tree evaluation, and tries to find a QoS multicast tree with the Pareto optimum under the Nash equilibrium on both the network provider utility and the user utility achieved or approached.