Title :
Positioning Based on Signals of Opportunity
Author :
Coluccia, Angelo ; Ricciato, Fabio ; Ricci, Giuseppe
Author_Institution :
Dipt. Ing. dell´Innovazione, Univ. of Salento, Lecce, Italy
Abstract :
A novel approach to opportunistic positioning based on timing measurements is presented. The asynchronous radio transmissions from fixed stations and from mobile GPS-equipped nodes are jointly exploited to cooperatively localize a blind node. To this end, a weighted least-squares (WLS) estimator is proposed; its effectiveness is illustrated via simulations in a realistic scenario.
Keywords :
Global Positioning System; direction-of-arrival estimation; position control; timing; asynchronous radio transmissions; fixed stations; mobile GPS-equipped nodes; opportunistic positioning; timing measurements; weighted least-squares estimator; Clocks; Equations; Global Positioning System; Mathematical model; Receivers; Signal to noise ratio; Timing; Opportunistic positioning; asynchronous systems; localization; time difference of arrival (TDOA); weighted least-squares (WLS);
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.123013.132297
