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在延迟容忍网络(DTN)中,大多数已有的路由算法在整个数据传输过程中采用单一的数据转发行为。提出了一种基于人类移动模式设计不同数据转发行为的路由策略。该策略将个体移动划分为两种状态:一种是Normal状态,另外一种为Small状态。在Normal状态时,采用三因素标准来严格选取中继节点;在Small状态时,采用小范围洪泛来降低端到端延迟。仿真结果表明该策略与传统策略相比可有效提高路由效率。
In Delayed Tolerance Network (DTN), most existing routing algorithms employ a single data forwarding behavior throughout the data transfer. Proposed a routing strategy based on human mobility model to design different data forwarding behavior. The strategy divides individual movement into two states: one is Normal and the other is Small. In the Normal state, a three-factor criterion is used to strictly select the relay node; in the Small state, a small flood is used to reduce the end-to-end delay. Simulation results show that the proposed strategy can effectively improve the routing efficiency compared with the traditional strategy.