Title :
Distributed Self Localisation of Sensor Networks using Particle Methods
Author :
Kantas, Nikolas ; Singh, Sumeetpal S. ; Doucet, Arnaud
Author_Institution :
Signal Processing Group, Department of Engineering, University of Cambridge, UK. nk234@cam.ac.uk
Abstract :
We describe how a completely decentralized version of Recursive Maximum Likelihood (RML) can be implemented in dynamic graphical models through the propagation of suitable messages that are exchanged between neighbouring nodes of the graph. The resulting algorithm can be interpreted as a generalization of the celebrated belief propagation algorithm to compute likelihood gradients. This algorithm is applied to solve the sensor localisation problem for distributed trackers forming a sensor networks. An implementation is given for dynamic nonlinear model without loops using Sequential Monte Carlo (SMC) or particle
Keywords :
Belief propagation; Graphical models; Inference algorithms; Maximum likelihood estimation; Message passing; Monte Carlo methods; Signal processing algorithms; Sliding mode control; Statistical distributions; Target tracking;
Conference_Titel :
Nonlinear Statistical Signal Processing Workshop, 2006 IEEE
Conference_Location :
Cambridge, UK
Print_ISBN :
978-1-4244-0581-7
Electronic_ISBN :
978-1-4244-0581-7
DOI :
10.1109/NSSPW.2006.4378845
