| 延迟容忍传感器网络中基于移动协助的数据传输 |
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| 引用本文： | 李慧杰,彭 舰,刘 唐. 延迟容忍传感器网络中基于移动协助的数据传输[J]. 通信学报, 2014, 35(10): 21-191. DOI: 10.3969/j.issn.1000-436x.2014.10.021 |
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| 作者姓名： | 李慧杰 彭 舰 刘 唐 |
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| 作者单位： | 1. 四川大学 计算机学院，四川 成都 610065；2. 四川师范大学 基础教学学院，四川 成都 610068 |
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| 基金项目： | 国家自然科学基金资助项目(61303204，U1333113)；四川省科技支撑计划基金资助项目(2012GZX0088-1，2011GZ0188)；四川师范大学科研基金资助项目(13KYL06) |
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| 摘 要： | 提出了基于移动协助的动态数据传输算法(MAD, movement-assisted adaptive data delivery)。在缓冲区域内设置数据缓存节点，让基站在缓冲区内周期性地移动，数据动态地复制给更有可能到达缓冲区并且剩余能量较高的节点，然后基站在移动中将缓存节点中的数据进行收集。MAD是由数据传输和队列管理2部分组成。前者根据节点的运动趋势和剩余能量计算节点的转发概率，后者通过消息的生存时间和消息的最大复制数确定队列中消息发送的优先级及丢弃方法。仿真结果表明，与其他策略相比，MAD在传输成功率和网络寿命方面具有更好的性能。
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| 关 键 词： | 延迟容忍移动传感器网络；数据收集；移动协助；动态数据传输 |
Movement-assisted data delivery fordelay tolerant mobile sensor networks |
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| Hui-jie LI,Jian PENG,Tang LIU. Movement-assisted data delivery fordelay tolerant mobile sensor networks[J]. Journal on Communications, 2014, 35(10): 21-191. DOI: 10.3969/j.issn.1000-436x.2014.10.021 |
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| Authors: | Hui-jie LI Jian PENG Tang LIU |
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| Affiliation: | 1. College of Computer Science,Sichuan University,Chengdu 610065,China;2. College of Fundamental Education,Sichuan Normal University,Chengdu 610068,China |
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| Abstract: | A novel data delivery method named movement-assisted adaptive data delivery (MAD) was proposed. The data cache nodes were deployed in the buffer and the base station moves in the buffer regularly. The data was forwarded to the nodes which likely moved to the buffer and had the higher remaining energy, and the base station collects data in the moving process. MAD contains two parts, data forwarding and queue management. The former makes the decision by the movement trend and the residual energy. The latter was based on the size of the survival time and the replication. Simulation results show that MAD had relatively higher delivery ratio and longer network lifetime. |
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| Keywords: | delay tolerant mobile sensor networks data gathering movement-assisted dynamic data delivery |
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