基于按需路由的MPRN路由协议

提出了采用按需路由发现策略的MPRN路由协议OFGRP。在OFGRP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网络。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。模拟实验显示协议在带宽较低的MPRN网络环境中，具有较好的可靠性和工作效率。

AN ON-DEMAND ROUTING PROTOCOL FOR MPRN

This paper proposes a on-demand protocol for MPRN.The protocol does not maintain permanent route tables with full topological views.Instead,it applies on-demand procedures to dynamically discover routes and build multicast forwarding grid.The data 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 protocol is robust to mobility,has low bandwidth overhead,scales well with membership group size.