| DTN中一种基于接触时间的休眠机制 |
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| 引用本文： | 付 凯,夏靖波,尹 波. DTN中一种基于接触时间的休眠机制[J]. 计算机科学, 2013, 40(2): 87-90 |
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| 作者姓名： | 付 凯 夏靖波 尹 波 |
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| 作者单位： | (空军工程大学信息与导航学院 西安710077) |
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| 摘 要： | 针对容迟/容断网络(DTN)中能量供应受限的问题，提出一种基于接触时间的休眠机制SSCT(Sleep Scheme based on Contact Time)。节点依据历史接触时间自适应调整等待时间和休眠时间，从而降低休眠期间错失通信机会的概率。仿真实验表明，添加SSCT的Epidemi。算法能够在保证消息交付率的基础上降低网络开销和能耗。相比First Contact算法，SSCT对多副本路由算法的性能提升更加明显。
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| 关 键 词： | 容迟/容断网络，能量消耗，休眠机制，接触时间 |
Sleep Scheme Based on Contact Time in DTN |
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| Abstract: | Considering the problem that energy supplies are limited in DTN, a sleep scheme based on contact time was proposed. Nodes carry out adaptive strategy to adj ust wait time and sleep time according to former contact time, and reduce the probability of missing communication opportunities in sleep period. Simulation results indicate that Epidemic algorithm with SSCT can reduce network overhead and energy consumption based on high message delivery ratio, and SSCT has better performance on multi-copy routing algorithms compared with First Contact algorithm. |
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| Keywords: | Delay/disruption tolerant network Energy consumption Sleep scheme Contact time |
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