无线传感器网络数据密度相度融法-控制理论与应用.PDF

31 11 Vol. 31 No. 11 2014 11 Control Theory Applications Nov. 2014 DOI: 10.7641/CTA.2014.31145 , , (1. , 510665; 2. , 510006; 3. , 510006; 4. , 510006) : , . , . , . , , . , . – . : ; ; ; : TP273 : A Data density correlation degree based aggregation algorithm in wireless sensor network YUAN Fei , ZHAN Yi-ju , WANG Yong-hua (1. School of Automation, Guangdong Polytechnic Normal University, Guangzhou Guangdong 510665, China; 2. School of Information Science and Technology, SUN-YAT SEN University, Guangzhou Guangdong 510006, China; 3. School of Engineering, SUN-YAT SEN University, Guangzhou Guangdong 510006, China; 4. School of Automation, Guangdong University of Technology, Guangzhou Guangdong 510006, China) Abstract: Distance between sensor nodes can’t reflect their correlation degree in wireless sensor network (WSN) as the sensor nodes are deployed in complex environment. In order to resolve this drawback, data density correlation degree (DDCD) is proposed in this paper. The DDCD is a spatial correlation measurement of a sensor node’s data to its neighbor nodes’ data. It could reflect the concentration degree of neighbor nodes’ data. As well, it could describe relative position of a sensor node’s data to its -neighborhood data. Based on this correlation degree, DDCD aggregation algorithm is presented to highlight that the representative data has a low distortion on the represented data in WSN. Ad