基于传输路径质量的无线mesh网络可靠多播

Reliable multicast in wireless mesh networks based on routing quality

提出了一种可靠多播网(RM)模型,探讨了无线链路和节点可靠性对多播路径选择的影响。首先,建立了无线链路的相关性和多播路径的可靠性模型,并提出了多播传输的可靠性判据;同时,结合首树算法和多路径树算法提出了构造可靠多播网的算法。可靠多播网具有并行的多播路径,通过在多播源节点和目的节点之间选择多播链路和节点构成了可靠的多播路径,提供了多播路径的"负荷分担"和"热备份"功能,从而支持了多播业务可靠性。

A reliable model of multicast network was proposed and the reliability of the wireless links and nodes on the multicast routing was discussed. First, a reliable model about the relevance of wireless links and the reliability of multi- cast paths was established, and reliability criterion of multicast transmission was proposed. A reliable multicast network based on the combination of primary tree and multi-path tree algorithm was designed. Reliable multicast networks have multi-parallel multicast paths, so it satisfies the reliability requirement of multicast links and nodes between multicast source node and destination nodes, and provides the load sharing and hot standby functions, accordingly satisfies the multicast traffic reliability.