计算机应用 ›› 2018, Vol. 38 ›› Issue (1): 222-227.DOI: 10.11772/j.issn.1001-9081.2017061627

• 网络与通信 • 上一篇    下一篇

基于多粒度拓扑图的无线传感器网络逐级精化溯源方法

康照玲, 徐芹宝, 王昌达   

  1. 江苏大学 计算机科学与通信工程学院, 江苏 镇江 212013
  • 收稿日期:2017-07-03 修回日期:2017-08-25 出版日期:2018-01-10 发布日期:2018-01-22
  • 通讯作者: 王昌达
  • 作者简介:康照玲(1993-),女,江苏常州人,硕士研究生,主要研究方向:信息安全、无线传感器网络;徐芹宝(1987-),男,山东淄博人,硕士研究生,主要研究方向:信息安全、无线传感器网络;王昌达(1971-),男,江苏南京人,教授,博士生导师,博士,主要研究方向:信息安全、网络通信、物联网。
  • 基金资助:
    国家自然科学基金资助项目(61672269);江苏省科技成果转化项目(BA2015161);江苏大学拔尖人才计划项目(1213000013)。

Multi-granularity topology-based stepwise refinement provenance method for wireless sensor networks

KANG Zhaoling, XU Qinbao, WANG Changda   

  1. College of Computer Science and Communication Engineering, Jiangsu University, Zhenjiang Jiangsu 212013, China
  • Received:2017-07-03 Revised:2017-08-25 Online:2018-01-10 Published:2018-01-22
  • Supported by:
    This work is partially supported by the National Natural Science Foundation of China (61672269), the Transformation Project of Science & Technology Achievements of Jiangsu Province (BA2015161), the Top-Notch Talent Planning Project of Jiangsu University (1213000013).

摘要: 针对溯源数据分段传输方法要求所有分段准确到达基站(BS)后才能解码,鲁棒性较弱的问题,提出一种无线传感器网络(WSN)溯源逐级精化方法。首先,在BS端利用商空间划分理论将较大的WSN拓扑图划分为由少量抽象节点组成的较粗粒度的拓扑图;然后,利用字典编码溯源的方式分段传输溯源;最后,在BS端根据依次到达的分段进行逐级精化解码,实现了在BS端由粗到细逐级精化解码溯源的过程,且BS可以根据前期解码出的较粗粒度下的溯源信息判断是否放弃此数据还是须采用更细粒度的数据进行深入评估。理论分析、仿真与实验数据均表明,与传统分段方法相比,所提方法平均压缩比提高约51.8%,平均能量消耗降低约50.5%。

关键词: 无线传感器网络, 多粒度拓扑图, 溯源, 分段传输

Abstract: Focusing on the problem that the session-based provenance scheme requires that all of the provenance sessions must be received by the Base Station (BS) correctly before decoding, which decreases the robustness of the scheme, a provenance scheme with stepwise refinement was proposed. Firstly, a large Wireless Sensor Network (WSN) topology was divided into different granularities which were composed of a series of abstract nodes through quotient space dividing theory. Then, the dictionary based provenance scheme was used to transmit provenance at different grained layers. Therefore, the BS reconstructed the provenance from the coarse-grained layer to the fine-grained one as well as judged whether to discard the data or not according to the results of the coarse-grained layer's decoding. The theoretical analysis, simulations and experimental results show that in comparison of the traditional provenance schemes, the average compression ratio of the proposed method is improved by 51.8%, and the energy consumption of that is reduced by 50.5%.

Key words: Wireless Sensor Network (WSN), multi-granularity topology, provenance, segmented transmission

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