Collaborative Detection of Spatially Correlated Signals in Sensor Networks

This paper addresses multi-sensor collaboration for the detection of weak and noisy signals using wireless sensor networks. The proposed scheme is targeted for the detection of spatially correlated signals, which is common in many sensor network applications. It applies a clustering measure for improving the detection performance with multi-sensor fusion that is traditionally performed by using a counting rule. Associated communication protocols for performing collaboration among sensor nodes for maintaining low communication overhead are presented. Performance of the proposed schemes are obtained using computer simulations.

[1]  Pramod K. Varshney,et al.  Distributed detection with multiple sensors I. Fundamentals , 1997, Proc. IEEE.

[2]  Chris Savarese.  LOCATIONING IN DISTRIBUTED AD-HOC WIRELESS SENSOR NETWORKS , 2001 .

[3]  Samir Ranjan Das,et al.  Serial data fusion using space-filling curves in wireless sensor networks , 2004, 2004 First Annual IEEE Communications Society Conference on Sensor and Ad Hoc Communications and Networks, 2004. IEEE SECON 2004..

[4]  Satish Kumar,et al.  Next century challenges: scalable coordination in sensor networks , 1999, MobiCom.

[5]  Rick S. Blum,et al.  Distributed detection with multiple sensors I. Advanced topics , 1997, Proc. IEEE.

[6]  Gregory J. Pottie,et al.  Instrumenting the world with wireless sensor networks , 2001, 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221).

[7]  Leonidas J. Guibas,et al.  Wireless sensor networks - an information processing approach , 2004, The Morgan Kaufmann series in networking.

[8]  Mani B. Srivastava,et al.  Simulating networks of wireless sensors , 2001, Proceeding of the 2001 Winter Simulation Conference (Cat. No.01CH37304).

[9]  Harry L. Van Trees,et al.  Detection, Estimation, and Modulation Theory, Part I , 1968 .

[10]  Michael R. Anderberg,et al.  Cluster Analysis for Applications , 1973 .

[11]  Deborah Estrin,et al.  GPS-less low-cost outdoor localization for very small devices , 2000, IEEE Wirel. Commun..