Title :
A new peer-to-peer aided acquisition approach exploiting C/N0 aiding
Author :
Margaria, Davide ; Presti, Letizia Lo ; Kassabian, Nazelie ; Samson, Jaron
Author_Institution :
Electron. Dept., Politec. di Torino, Torino, Italy
Abstract :
The aim of this paper is to present an acquisition strategy for Global Navigation Satellite System (GNSS) signals exploiting aiding information provided by GNSS receivers in a Peer-to-Peer (P2P) positioning system. This work sheds light on the benefits of sharing information regarding the received satellite signal power: the Carrier-to-Noise density ratio (C/N0) estimated by aiding peers relatively close to each other, is used to optimize signal acquisition capability in terms of detection performance as well as Mean Acquisition Time (MAT). The proposed approach has been validated and assessed using real data collected with an experimental setup in light indoor conditions and by means of simulations. The performance obtained has also been compared with an Assisted-GNSS (A-GNSS) like acquisition strategy, showing the benefits of the availability of C/N0 aiding information in terms of MAT.
Keywords :
peer-to-peer computing; satellite navigation; signal detection; GNSS receiver; assisted-GNSS; carrier-to-noise density ratio estimation; global navigation satellite system signal; mean acquisition time; peer-to-peer positioning system; satellite signal power; signal acquisition; Delay; Doppler effect; Global Navigation Satellite Systems; Global Positioning System; Peer to peer computing; Receivers; Synchronization; Aided Acquisition; Assisted-GNSS; C/N0 estimation; Galileo; Peer-to-peer;
Conference_Titel :
Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC), 2010 5th ESA Workshop on
Conference_Location :
Noordwijk
Print_ISBN :
978-1-4244-8740-0
DOI :
10.1109/NAVITEC.2010.5708021
