An efficient delay-constrained multicast routing algorithm based on shared tree strategy(STMA) was proposed in this paper. The running complexity of it is O(m|V|2), where m is the number of group members, |V| is the number of nodes in network. Experimental results through simulations show that STMA achieves good performance with moderate running complexity.%提出了一个有效的基于共享树策略的延迟受限组播路由算法(STMA)。算法的计算复杂性是O(m|V|2),其中m是组成员数量,|V|是网络中节点数量。仿真结果显示,STMA在适中的复杂性水平上取得了良好的代价性能
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