Research activities at the SI Department are focused towards designing advanced receiver techniques and architectures for the new generation of Communication and Positioning systems. The Department carries out fundamental and applied research in the fields of statistical signal processing, communication theory, multi-antenna systems, data fusion, and PHY prototyping. Activities are centered in four main research lines:
- Advanced synchronization techniques, robust to propagation impairments and weak signal conditions (strong involvement in deep space communications and robust ranging).
- Coding aspects for (5G and beyond) wireless communications, including (physical-layer) network coding and decoding algorithms.
- Anywhere/anytime positioning systems, including GNSS and indoor positioning solutions with proof-of-concept developments.
- Prototyping of PHY communication and positioning systems, with focus on baseband processing but encompassing end-to-end receiver design.
J. Dampf, T. Pany, W. Bär, J. Winkel, C. Stöber, K. Fürlinger, P. Closas, J. A. Garcia-Molina, More Than We Ever Dreamed Possible: Processor Technology for GNSS Software Receivers in the Year 2015, Inside GNSS, Vol. 10, No. 4, pp. 62-72, July 2015.
J. Vilà-Valls, P. Closas, C. Fernández-Prades, J. A. López-Salcedo, G. Seco-Granados, Adaptive GNSS Carrier Tracking under Ionospheric Scintillation: Estimation vs Mitigation, IEEE Communications Letters, Vol. 19, No. 6, pp. 961-964, June 2015.
A. Moragrega, P. Closas, C. Ibars, Potential Game for Energy-Efficient RSS-based Positioning in Wireless Sensor Networks, IEEE Journal on Selected Areas in Communications, Vol. 33, No. 7, pp. 1394-1406, May 2015.
D. Dardari, P. Closas, P. Djuric, Guest Editorial Special Section on Indoor Localization, Tracking, and Mapping With Heterogeneous Technologies, IEEE Transactions on Vehicular Technologies, Vol. 64, No. 4, pp. 1261-1262, April 2015.
D. Dardari, P. Closas, P. Djuric, Indoor Tracking: Theory, Methods, and Technologies, IEEE Transactions on Vehicular Technologies, Vol. 64, No. 4, pp. 1263-1278, April 2015.
S. Pfletschinger, M. Navarro, P. Closas, Frame Synchronization for Next Generation Uplink Coding in Deep Space Communications, in Proceedings of Global Communications Conference, Exhibition & Industry Forum (IEEE GLOBECOM 2015), 6-7 December 2015, San Diego, California (USA).
P. Closas, J. Vilà-Valls, C. Fernández-Prades, Computational complexity reduction techniques for Quadrature Kalman filters, in Proceedings of 2015 IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, 13-16 December 2015, Cancun (Mexico).
G. Rodríguez, M. Nájar, M. Navarro, Adaptive real-time detection algorithms for respiratory patterns based on UWB radar , in Proceedings of Joint NEWCOM/COST Workshop on Wireless Communications (JNCW 2015), 14-15 October 2015, Barcelona (Spain).
J. Arribas, C. Fernández-Prades, P. Closas, GESTALT: A Testbed for Experimentation and Validation of GNSS Software Receivers, in Proceedings of of the ION GNSS+ 2015, 14-18 September 2015, Tampa, Florida (USA).
T. Pany, J.Dampf, C. Stöber, J. Winkel, K. Fürlinger, P. Closas, J. A. Garcia-Molina, Benchmarking CPUs and GPUs on Desktop PCs and Embedded Platforms, in Proceedings of ION GNSS+ 2015,14-18 September 2015, Tampa, Florida (USA).
P. Closas, C. Fernández-Prades, A. J. Fernández, M. Wis, G. Veccione, F. Zanier, J.A. Garcia-Molina, M. Crisci, Evaluation of GNSS Direct Position Estimation in Realistic Multipath Channels, in Proceedings of ION GNSS+ 2015, 14-18 September 2015, Tampa, Florida (USA).
J.A. Fernandez-Rubio, P. Closas, A. Moragrega, J. M. Castro, Assessment of RSS Model Calibration with Real WLAN Devices, in Proceedings of Twelfth International Symposium on Wireless Communication Systems (ISWCS’15), 25-28 August 2015, Brussels (Belgium).
J. Vilà-Valls, P. Closas, C. Fernández-Prades, Advanced KF-based Methods for GNSS Carrier Tracking and Ionospheric Scintillation Mitigation, in Proceedings of the IEEE Aerospace Conference, 7-14 March 2015, Big Sky, Montana (USA).
J. Vilà-Valls, P. Closas, C. Fernández-Prades, On the Identifiability of Noise Statistics and Adaptive KF Design for Robust GNSS Carrier Tracking, in Proceedings of the IEEE Aerospace Conference, 7-14 March 2015, Big Sky, Montana (USA).
X. Mestre, S. Pfletschinger, M. Majoral, Method for equalizing filterbank multicarrier (FBMC) modulations , Granted patent: USA 8.929.495
M. Nájar, M. Navarro, Method of Demodulation and Synchronization in Ultrawideband Systems , Granted patent: US 8.472.500, EP2332267, ES2355999.