Title :
Multi-step sensor selection with position uncertainty constraints
Author :
Frohle, Markus ; Zaidi, Ali A. ; Strom, Erik ; Wymeersch, Henk
Author_Institution :
Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
Research on localization systems has shifted from focusing mainly on accuracy towards a more cognitive design, accounting for communication constraints, energy limitations, and delay. This leads to a variety of sensor selection optimization problems that are solved using techniques from convex optimization. We provide a novel formulation of the sensor selection problem over an extended time horizon, aiming to minimize the sensing cost of an entire path while guaranteeing a certain position accuracy. We state algorithms for determining lower and upper bounds on the sensing cost and utilize these in a path selection problem for autonomous agents. Simulation results confirm the usefulness of our approach, where we observe a benefit of optimizing over longer time horizons in low to medium noise scenarios compared to a myopic sensor selection scheme.
Keywords :
convex programming; iterative methods; sensors; convex optimization; localization systems; multistep sensor selection; position uncertainty constraints; sensor selection optimization problems; Accuracy; Conferences; Noise level; Optimization; Robot sensing systems; Three-dimensional displays; Upper bound;
Conference_Titel :
Globecom Workshops (GC Wkshps), 2014
DOI :
10.1109/GLOCOMW.2014.7063636