On the NP-complete problem, two swarm intelligent algorithms are proposed based on AntNet algorithm and BeeHive algorithm to find QoS-constrainted paths or multicast trees, respectively.

• 由于所研究问题是NP完全问题，因此提出了两种群集智能算法，分别基于蚂蚁网络算法和蜂群算法来寻找满足QoS约束的路径或组播树。