关键词: 容迟/容断网络, 路由算法, 能量敏感, 消息转发, 缓存管理

Abstract: Considering the problem of limited energy in Delay/Disruption Tolerant Network (DTN), a node energy-aware probabilistic routing algorithm was proposed. Nodes in network were distinguished according to energy situation, and different message delivery mechanism and energy-efficient buffer management strategy were adopted in order to achieve the balance between delivery ratio and energy consumption. Simulations indicate that the algorithm improves delivery ratio and reduces overhead ratio on low energy consumption, and has better performance on network lifetime compared with other algorithms.

Key words: Delay/disruption Tolerant Network（DTN）, routing algorithm, energy-aware, message delivery, buffer management