摘要
提出了一种采用按需路由发现策略的移动分组无线网多播路由协议 .协议采用了基于网格的方案 .在协议中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 ,使协议能够降低带宽的占用及减少路由更新信息的传播 .仿真实验说明 ,协议在带宽较窄、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 .
A multicast protocol utilizing on-demand routing strategy for mobile packet radio network is proposed. The protocol is a mesh-based multicast scheme. It does not maintain permanent route tables with full topological views. Instead, it applies on-demand procedures to discover routes dynamically and build multicast forwarding groups. The multicast packets are propagated by each forwarding group member via scoped flooding, so the protocol can reduce network bandwidth overhead and avoid the propagation of potentially large routing updates throughout the network. Simulation results 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 packet radio networking.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2002年第5期618-621,共4页
Transactions of Beijing Institute of Technology
基金
国防"十五"规划项目
