Distributed reconstruction of time-varying spatial fields based on consensus propagation

Author

Schwarz, Valentin ; Matz, Gerald

Author_Institution

Inst. of Commun. & Radio-Freq. Eng., Vienna Univ. of Technol., Vienna, Austria

fYear

2010

fDate

14-19 March 2010

Firstpage

2926

Lastpage

2929

Abstract

This work deals with the distributed measurement and reconstruction of time-varying spatial fields using wireless sensor networks (WSN).We use basis functions to formulate a low-dimensional subspace model for the field and estimate the field coefficients using a suitably modified version of consensus propagation (CP), which is a distributed asynchronous averaging algorithm with favorable convergence. Simulation results confirm the excellent performance of the proposed method in static and dynamic environments.

Keywords

distributed algorithms; wireless sensor networks; consensus propagation; distributed asynchronous averaging algorithm; distributed measurement; distributed reconstruction; low-dimensional subspace model; time-varying spatial fields; wireless sensor networks; Belief propagation; Bidirectional control; Broadcasting; Convergence; Distributed computing; Inference algorithms; Message passing; Radio frequency; Topology; Wireless sensor networks; Consensus propagation; distributed inference; field reconstruction; wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Conference_Location

Dallas, TX

ISSN

1520-6149

Print_ISBN

978-1-4244-4295-9

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2010.5496161

Filename

5496161