How valid is the regularly-spaced grid assumption in RSS source localization sensor networks?

Author

Martin, Richard K.

Author_Institution

Dept. of Elec. & Comp. Eng., Air Force Inst. of Technol., Wright-Patterson AFB, OH, USA

fYear

2012

fDate

5-8 Aug. 2012

Firstpage

520

Lastpage

523

Abstract

Received signal strength (RSS) based wireless sensor networks are often employed for position tracking. Sensor deployment is generally modeled as either a regular grid or as a random, uniform distribution for each sensor. This paper provides a theoretical comparison between the geolocation performance of a regular grid and a randomized grid. We show that the Cramer-Rao bounds are comparable, and for typical network parameters, realizations of the bound of the random grid are within a factor of 2 of the regular grid, with at least 75% confidence.

Keywords

sensor placement; signal processing; target tracking; wireless sensor networks; Cramer-Rao bound; geolocation performance; position tracking; randomized grid; received signal strength; regular grid; regularly spaced grid assumption; sensor deployment; source localization sensor network; wireless sensor network; Acoustics; Approximation methods; Atmospheric modeling; Reactive power; Signal processing; Speech; Wireless sensor networks; Sensor networks; geolocation; received signal strength; source localization;

fLanguage

English

Publisher

ieee

Conference_Titel

Statistical Signal Processing Workshop (SSP), 2012 IEEE

Conference_Location

Ann Arbor, MI

ISSN

pending

Print_ISBN

978-1-4673-0182-4

Electronic_ISBN

pending

Type

conf

DOI

10.1109/SSP.2012.6319748

Filename

6319748