延迟/中断可容忍网络路由中的关键技术

Key Technoloqies in Delay/Discruption-Tolerant Network Routing

容迟网络是一种受限网络,以频繁的间断性和高而可变的延迟为特点,在某段时间内可能不存在端到端的路径,使得数据传输受到限制。对路由算法的研究是解决这种网络中数据传输问题的关键。虽然已经有大量的路由算法被提出,但不同的算法的侧重点不一样,有必要对路由涉及到的关键问题和技术做分析研究和总结,以便于将来的研究,目的正是如此,分析了与延迟/中断容忍网络(DTN)路由相关的关键技术。

DTN （delay/disruption-tolerant network） is a constrained network,with frequent disruption and long delay as its features,could have no end-to-end path in certain period of time,thus limiting the data transmission.So the study on the routing algorithm is the key to solving the data transmission problem in this network.Mary routing algorithm are proposed,and however,defferent algorithms have their own different particular emphases.So it is necessary to analyze and summarize the critical problems and key technologies concerned in routing algorithms.This paper treats of in detail the key technologies related with DTN routing,and this would be helpful to the future study of routing algorithms.