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延迟容忍网络中,基于历史消息转发路由协议可根据节点的历史统计信息对下一跳节点进行预测估计,以此判断转发和存储信息的最佳时机,避免信息盲目转发.为此,针对典型spray and focus协议选择中间节点的盲目性,将“分离时间”和“副本控制”运用于路由选择、缓存管理和组播方式中,可较好地节约资源,并提高通信效率.仿真结果表明,改进后的协议有效地提高了网络交付率,减小了端到端的时延.
In delay-tolerant networks, based on the historical message forwarding routing protocol, the next hop node can be estimated and estimated based on the historical statistics of nodes to determine the best timing for forwarding and storing information and avoid the blind forwarding of information.Therefore, and focus protocol selects the blindness of the intermediate nodes and applies “separation time ” and “copy control ” in routing, cache management and multicasting to save resources and improve communication efficiency. The results show that the improved protocol effectively improves the delivery rate of the network and reduces the end-to-end delay.