Implementation and Testing of OSNMA for Galileo

Carlo Sarto, Oscar Pozzobon, Samuel Fantinato, Stefano Montagner, Ignacio Fernández-Hernández, Javier Simon, Jesus David Calle, Simon Cancela Díaz, Paul Walker, Daniel Burkey, Gonzalo Seco-Granados, Eckart Göhler

Abstract:	A candidate specification of the protocol for the Galileo Open Service navigation message authentication (hereinafter referred to as OSNMA) has been implemented as part of the AALECS project (Authentic and Accurate Location Experimentation with the Commercial Service). The protocol has been integrated into an end-to-end demonstrator in order to evaluate its performance. The purpose of this paper is to present the testing framework that has been adopted in the AALECS experimentation activities and to report the first end-to-end test results. This includes worldwide service volume analyses with realistic satellite visibility and availability of satellites connected to the Galileo Uplink Stations, in order to characterize the entire system performance by simulation of the Galileo Full Operational Capability (FOC). These results allow evaluating in advance the achievable performances of a future Galileo OSNMA user considering the full system capabilities. This paper also partly addresses the fundamental requirements to implement Galileo Open Service Navigation Messages Authentication in the current and next generation of GNSS receivers, based on the lessons learned in the AALECS project.
Published in:	Proceedings of the 30th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2017) September 25 - 29, 2017 Oregon Convention Center Portland, Oregon
Pages:	1508 - 1519
Cite this article:	Sarto, Carlo, Pozzobon, Oscar, Fantinato, Samuel, Montagner, Stefano, Fernández-Hernández, Ignacio, Simon, Javier, Calle, Jesus David, Díaz, Simon Cancela, Walker, Paul, Burkey, Daniel, Seco-Granados, Gonzalo, Göhler, Eckart, "Implementation and Testing of OSNMA for Galileo," Proceedings of the 30th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2017), Portland, Oregon, September 2017, pp. 1508-1519. https://doi.org/10.33012/2017.15184
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