Title :
Spatial Correlation in Wireless Sensor Networks
Author :
Xu, Xin ; Wang, Wei
Author_Institution :
No. 28 Res. Inst., C4ISR Key Lab., CETC, Singapore, Singapore
Abstract :
This paper studies the spatial correlation in the sensing data gathered by densely deployed sensors. We first show that the joint entropy of a cluster of sensor nodes can be calculated through the covariance matrix of their readings when they are gaussian distributed. Then, two kinds of correlation patterns in the physical world are studied, and we show these two patterns have fundamental different impacts on joint entropy.
Keywords :
correlation methods; covariance matrices; wireless sensor networks; Gaussian distributed; covariance matrix; densely deployed sensors; joint entropy; sensing data; spatial correlation; wireless sensor networks; Correlation; Entropy; Joints; Quantization; Rate-distortion; Sensor phenomena and characterization;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5601393
