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The multicast information is usually transmitted through multiple intermediate nodes to reach the final destination node in multi-hop cognitive radio networks. There exist a lot of multicast routing protocols research , while these protocols based on traditional wireless networks are not suitable for WSN network. The question to be solved is in this paper: how to create a multicast routing path in multi-hop wireless WSN network, given a multicast routing QoS requirements, leads to the least bandwidth cosumption in the transmission process In this paper, a distributed multicast routing protocol is proposed to resolve the issue, the agreement not only completes the establishment of the routing process, but also conquers the reasonable scheduling of nodes in the routing transfer process. Experimental results show that the Qos multicast routing protocol can effectively reduce network bandwidth consumption, and increase the success rate of the response of the multicast request KeywordsWSN network; Multicast Routing; Quality of service;

A Qos Multicast Routing Protocol in WSN Network