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为了满足无线自组织网络中的组播数据流带宽需求,提出了无线ad hoc网络中带宽约束的分布式按需组播路由协议.该协议中,每个节点的资源预留表将记录接入自身、邻居节点和隐蔽节点的数据流的带宽需求,然后从该节点的全部可用带宽中减去资源预留表中预留的带宽,计算出剩余的可用带宽,且BCMR在带宽约束的前提下分布式地搜索最短时延路径.仿真结果表明,BCMR在分组投递率和时延方面性能较好,能满足实时通信的要求,可用于低移动性的无线ad hoc网络组播应用中.
In order to meet the demand of multicast data flow in wireless ad hoc networks, a distributed on-demand multicast routing protocol with bandwidth constraints in wireless ad hoc networks is proposed. In this protocol, the resource reservation table of each node records access Its own neighbor nodes and hidden nodes, and then subtracts the reserved bandwidth in the resource reservation table from the total available bandwidth of the node to calculate the remaining available bandwidth, and the BCMR is under the bandwidth constraint The shortest delay path is distributed searching.The simulation results show that BCMR performs well in terms of packet delivery rate and delay and can meet the requirements of real-time communication, and can be used in multicast applications of low-mobility wireless ad hoc networks.