Theoretical performances assessment of hybrid localization techniques

Author

Laaraiedh, Mohamed ; Amiot, Nicolas ; Avrillon, Stephane ; Uguen, Bernard

Author_Institution

IETR Labs., Univ. of Rennes 1, Rennes, France

fYear

2011

fDate

28-30 June 2011

Firstpage

185

Lastpage

188

Abstract

In this paper, expressions of Cramer Rao lower bounds (CRLB) are derived for non-hybrid and hybrid localization techniques based on RSSI, TOA, and TDOA under Gaussian uncorrelated measurements assumption. Simulations are then carried out using realistic radio parameters values in order to compare different non-hybrid and hybrid localization techniques. CRLBs expressions and simulations show that the number, the nature, the precision of measurements, and the anchors positions are the key parameters that influence positioning accuracy. Hence, the CRLB is proposed as a criterion of localization and a simulation based proof is given.

Keywords

Gaussian processes; direction-of-arrival estimation; radio networks; time-of-arrival estimation; Cramer Rao lower bounds; Gaussian uncorrelated measurements; RSSI; TDOA; TOA; heterogeneous wireless networks; hybrid localization techniques; radio parameter value; received signal strength indicator; time difference of arrival estimation; Accuracy; Indexes; Maximum likelihood estimation; Q measurement; Wireless networks; Cramer-Rao Lower Bound; Heterogeneous Wireless Networks; Localization; RSSI; TDOA; TOA;

fLanguage

English

Publisher

ieee

Conference_Titel

Statistical Signal Processing Workshop (SSP), 2011 IEEE

Conference_Location

Nice

ISSN

pending

Print_ISBN

978-1-4577-0569-4

Type

conf

DOI

10.1109/SSP.2011.5967654

Filename

5967654