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| 基于自适应最优消零的无线传感器网络数据压缩算法研究 | |
| 引用本文： | 蒋 鹏,吴建峰,吴 斌,董林玺,王 达.基于自适应最优消零的无线传感器网络数据压缩算法研究[J].通信学报,2013,34(2):1-7. |
| 作者姓名： | 蒋 鹏 吴建峰 吴 斌 董林玺 王 达 |
| 作者单位： | 1. 杭州电子科技大学 信息与控制研究所,浙江 杭州 310018 2. 杭州电子科技大学 射频电路与系统教育部重点实验室,浙江 杭州 310018 3. 杭州市质量技术监督检测院,浙江 杭州 310018 |
| 基金项目： | 国家自然科学基金资助项目(61273072);浙江省自然科学基金资助项目(Y1100054,Y1100590);杭州市科技局科技计划基金资助项目(20110533B44,20120433B40)~~ |
| 摘 要： | 针对无线传感器网络采集数据存在的时空冗余,提出了一种自适应最优消零压缩算法(AOZS,adaptive op-timal zero suppression compression algorithm)。AOZS是一种无损的数据压缩算法,能够自适应地寻找最优位数因子对递增排列的数据序列进行消零运算和编码,使得数据序列的最终编码长度最短。仿真结果表明,AOZS算法能够对无线传感器网络采集的数据进行有效地压缩,降低了节点能耗,减小了网络延时,并且能精确地重构原始数据。 |
| 关 键 词： | 数据压缩 自适应消零 数据冗余 |
Data compression method for wireless sensor networks based on adaptive optimal zero suppression |
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| JIANG Peng,WU Jian-feng,WU Bin,DONG Lin-xi,WANG Da.Data compression method for wireless sensor networks based on adaptive optimal zero suppression[J].Journal on Communications,2013,34(2):1-7. | |
| Authors: | JIANG Peng WU Jian-feng WU Bin DONG Lin-xi WANG Da |
| Affiliation: | 1. Institute of Information and Control, Hangzhou Dianzi University, Hangzhou 310018, China;2. Key Laboratory ofRF Circuits and System of Ministry of Education,Hangzhou Dianzi University,Hangzhou 310018, China;3. Institute of Quality and Technical Supervision & Inspection,Hangzhou 310018, China |
| Abstract: | Considering the temporal and spatial redundancy in wireless sensor network(WSN), an adaptive optimal zero suppression data compression method (AOZS) was proposed.AOZS is a loss-less compression method, it aims to find an optimal digital factor to perform zero suppression and encode operation for a data sequence in ascending order, and therefore the final code length is the shortest based on this optimal gital factor.Simulation results show that AOZS can compress the data and decrease the energy consumption effectively, and reduce the network delay and prolong the life cycle of the network as a result. |
| Keywords: | data compression adaptive zero suppression data redundancy |
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