Decentralized vs. centralized scheduling in wireless sensor networks for data fusion

Author

Mitici, Mihaela ; Goseling, Jasper ; de Graaf, Maurits ; Boucherie, Richard J.

Author_Institution

Stochastic Oper. Res., Univ. of Twente, Enschede, Netherlands

fYear

2014

fDate

4-9 May 2014

Firstpage

5070

Lastpage

5074

Abstract

We consider the problem of data estimation in a sensor wireless network where sensors transmit their observations according to decentralized and centralized transmission schedules. A data collector is interested in achieving a data estimation using several sensor observations such that the variance of the estimation is below a targeted threshold. We analyze the waiting time for a collector to receive sufficient sensor observations. We show that, for sufficiently large sensor sets, the decentralized schedule results in a waiting time that is a constant factor approximation of the waiting time under the optimal centralized scheme.

Keywords

sensor fusion; wireless sensor networks; centralized transmission scheduling; constant factor approximation; data collector; data estimation; data fusion; decentralized transmission scheduling; wireless sensor networks; Accuracy; Acoustics; Data integration; Estimation; Schedules; Scheduling; Wireless sensor networks; Wireless sensor network; data fusion; scheduling; waiting time;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on

Conference_Location

Florence

Type

conf

DOI

10.1109/ICASSP.2014.6854568

Filename

6854568