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| 基于环结构的传感器网络多分辨率数据存储机制 |
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谢 磊1,2, 陈力军1,2, 陈道蓄1,2, 谢 立1,2
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1.南京大学 计算机软件新技术国家重点实验室,江苏 南京 210093;2.南京大学-香港理工大学 无线与移动传感器网络联合实验室,江苏 南京 210093
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| 摘要: |
| 提出了一套基于环结构的传感器网络多分辨率数据存储机制,结合层次结构的存储查询方案,有效地利用了环结构的特性高效、节能地支持事件信息的不同分辨率的存储和查询操作,并采用优化的环结构参数,在基于环的层次结构数据存储架构中能够最小化网络节点的总体通信能耗.同时,对环结构多分辨率数据存储机制的相关性能从节能性、负载均衡性等多个角度进行了具体理论分析.模拟实验结果表明,基于环的层次结构存储机制能够高效、节能地支持传感器网络事件数据的多分辨率存储和查询操作. |
| 关键词: 传感器网络 数据存储 事件 查询 环结构 多分辨率 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant Nos.60573132, 60873026, 60573106 (国家自然科学基金); the National Basic Research Program of China under Grant No.2006CB303000 (国家重点基础研究发展计划(973)); the National High-Tech Research and Development Plan of China under Grant No.2006AA01Z199 (国家高技术研究发展计划(863)) |
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| Ring-Based Multi-Resolution Data Storage for Sensor Networks |
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XIE Lei,CHEN Li-Jun,CHEN Dao-Xu,XIE Li
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| Abstract: |
| In this paper, a ring-based multi-resolution storage scheme for sensor networks is proposed. Combined with the hierarchical scheme for data storage and query, it leverages characters of the ring-based structure to support multi-resolution data storage and query operations, achieving a good performance in terms of energy consumption. It adopts optimal parameters for ring-based storage structures, which can well handle the hierarchical data storage and query scheme with the minimized overall communication cost. Furthermore, the authors do theoretical analysis on the performance of the ring-based multi-resolution storage scheme, including energy efficiency, load balance. The experimental results indicate that significant benefits can be achieved with this ring-based multi-resolution storage scheme. |
| Key words: sensor network data storage event query ring multi-resolution |
