First Experimentation Results with the Full Galileo CS Demonstrator

Calle, D.; Cancela, Simon; Carbonell, E.; Rodríguez, Iván González; Tobías, Guillermo; Fernández‐Hernández, Ignacio

doi:10.33012/2016.14728

Cited by 8 publications

(3 citation statements)

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“…urban, suburban, open field, etc.). In the second experimentation phase, a novel working mode called Advance Replay Mode (ARM) has been implemented and presented in [10]. The ARM mode can evaluate the achievable user performance of future services without actually transmitting the data through the Signal in Space.…”

Section: Osnma Experimentationmentioning

confidence: 99%

Implementation and Testing of OSNMA for Galileo

Sarto¹,

Pozzobon²,

Fantinato³

et al. 2017

Proceedings of the 30th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS+ 201

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(UAB) and head of the Signal Processing for Navigation and Communications (SPCOMNAV) group. Previoulsy, he was staff member at the Radionavigation Section in ESTEC/ESA, and involved in the Galileo project and in the development of GNSS receivers and applications. Eckart Göhler received his Diploma in physics from the University Tübingen and his Ph.D. from the Institute for Astronomy and Astrophysics, Tübingen. He worked as a lead software engineer at IFEN GmbH in the receiver technology department. Today he is employed at OHB System AG in the instrument software group.

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Section: Osnma Experimentationmentioning

confidence: 99%

Implementation and Testing of OSNMA for Galileo

Sarto¹,

Pozzobon²,

Fantinato³

et al. 2017

Proceedings of the 30th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS+ 201

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“…For Galileo open service navigation message authentication (OS-NMA), the subset of satellites distributing the authentication data dynamically changes, and no user knows in advance which satellite is actually transmitting the message [10]. Still, a message splitting approach has been proposed for OS-NMA in [11] and [12]. In this context, the use of random fountain codes has been proposed [13] to increase the reliability of the packet dissemination.…”

Section: Introductionmentioning

confidence: 99%

Multi-Round Message Scheduling for Fast GNSS Packet Broadcasting

Ardizzon

Laurenti

Tomasin

2023

IEEE Trans. Aerosp. Electron. Syst.

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Global navigation satellite systems (GNSSs) may transmit data to provide additional services. Since the resources reserved for these data are typically fixed and the message rate is low, we propose to split long messages into shorter packets and properly schedule their transmission from the entire constellation of satellites. Considering an efficient data transmission (useful for example for search and rescue messages), we aim at the scheduling of packets on the satellites on multiple rounds with two objectives: either a) the minimization of the maximum latency among all receivers, or b) the maximization of the average received packets per round. We first derive bounds on the performance of any GNSS single or multi-round scheduling solution, on which the proposed scheduling solutions are based. Then we introduce the scheduling problems that turn out to be integer linear programming (ILP) problems. Lastly, we assess their performance, showing that our solution minimizes the maximum latency, while the scheduling targeting the average latency outperforms existing literature solutions.

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“…GNSS message authentication has been studied for GPS, Galileo, and BeiDou, although, at the time of writing, only Galileo has confirmed its implementation . GNSS signals may also incorporate spreading code authentication and encryption features, such as those in Galileo Commercial Service, Public Regulated Service, or GPS P(Y) and M codes, which protect against spoofing of the pseudorange measurements. However, some threats, such as meaconers or GPS repeaters, need to be treated in the receiver, by monitoring AGC, C/N 0 , clock, signal correlation shape, PVT output, or adding antenna arrays or INS.…”

Section: Introductionmentioning

confidence: 99%

Impact analysis of SBAS authentication

Fernández‐Hernández

Châtre

Chiara³

et al. 2018

NAVIGATION

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The GNSS community is dedicating significant effort to protect applications from harmful interference, including spoofing. As part of this effort, Europe will authenticate the Galileo Open Service message and is currently evaluating authentication schemes for EGNOS. This article presents the main results of recent EU activities on EGNOS authentication. After presenting some examples that illustrate the importance of authenticating SBAS, this article describes the main drivers for SBAS authentication design, namely, the use of I and/or Q channels, the use of the L1 and/or L5 frequencies, the authentication latency, and the cryptographic parameters. Later, the article presents the performances of EC‐Schnorr and TESLA data authentication schemes and analyzes their impact in the SBAS L1 message sequence and in the L1/L5 Dual Frequency Multi‐Constellation Standard message sequence, currently under development.

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First Experimentation Results with the Full Galileo CS Demonstrator

Cited by 8 publications

References 0 publications

Implementation and Testing of OSNMA for Galileo

Implementation and Testing of OSNMA for Galileo

Multi-Round Message Scheduling for Fast GNSS Packet Broadcasting

Impact analysis of SBAS authentication

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