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中文摘要：
MANET是一个多跳，节点无中心、自组织、互相通信而不依赖于预先架设的固定基础设施无线移动网络。本文提出了采用按需路由发现策略的移动AdHoc多播路由算法。此算法不需要维护全局的路由信息，通过按需路由发现过程，动态更新路由信息和建立多播转发组。多播数据包在转发组成员间进行有限泛洪，能够降低带宽的占用及减少路由更新信息的传播。仿真实验显示多播算法在带宽较低、多播组成员数量变化较大的移动分组无线网环境中，具有较好的可靠性和工作效率。
英文摘要：
A mobile ad hoc network is a multi-hop wireless network,where nodes,without center and self-organizing, communicates with each other without any pre-deployed infrastructure.This paper proposes and implements a multicast protocol for wireless mobile ad hoc network. The classic multicast protocols proposed for wired infrastructures are not well suited to handle bandwidth limitations and unpredictable topology changes. This protocol needn＇ t maintain permanent route tables with full topological views. Instead, multicast senders reactively and dynamically discover routes and obtain multicast group information on demand. The simulation experiments show that the multicast protocol is robust to mobility, has low bandwidth overhead, scales well with membership group size, and can be used effectively for mobile ad hoc network.
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