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Home | Seminars and Symposia | Past seminars/symposia: Friday, February 7, 2014

DTC Seminar Series

Sparsity-Promoting Sensor Selection for Non-Linear Measurement Models

by

Geert Leus
Delft University of Technology

Friday, February 7, 2014
4:00–5:00 pm

402 Walter Library

Sensor selection is an important design problem in large-scale sensor networks. It is important to reduce the hardware costs as well as storage, processing, and communication overhead. Sensor selection can be interpreted as the problem of selecting the best subset of sensors that guarantee a certain estimation performance. We focus particularly on the CRB optimality of the estimates from observations that are related to a non-linear measurement model. We formulate the sensor selection problem as the design of a selection vector subject to performance constraints, which is a nonconvex optimization problem in its original form. The selection problem is however further relaxed to a semi-definite programming (SDP) problem in the inequality form, which can be efficiently solved in polynomial time. We consider both static as well as dynamic models and apply our results to localization and tracking.

 

Geert Leus received the electrical engineering degree and the PhD degree in applied sciences from the Katholieke Universiteit Leuven, Belgium, in June 1996 and May 2000, respectively. Currently, Geert Leus is an "Antoni van Leeuwenhoek" Full Professor at the Faculty of Electrical Engineering, Mathematics and Computer Science of the Delft University of Technology, The Netherlands. His research interests are in the area of signal processing for communications. Geert Leus received a 2002 IEEE Signal Processing Society Young Author Best Paper Award and a 2005 IEEE Signal Processing Society Best Paper Award. He is a Fellow of the IEEE. Geert Leus was the Chair of the IEEE Signal Processing for Communications and Networking Technical Committee, and an Associate Editor for the IEEE Transactions on Signal Processing, the IEEE Transactions on Wireless Communications, the IEEE Signal Processing Letters, and the EURASIP Journal on Advances in Signal Processing. Currently, he is a member of the IEEE Sensor Array and Multichannel Technical Committee and serves as the Editor in Chief of the EURASIP Journal on Advances in Signal Processing.