16 papers
Time-modulated phased array controlled with nonideal bipolar squared periodic sequences
R. Maneiro-Catoira, J. Brégains, José A. GarcÃa-Naya +1
Bipolar (+/-1) sequences with no zero state suit particularly well for safeguarding the switched feeding network efficiency when applied to time-modulated arrays (TMAs). During the…
Unleashing the Potential of LTE for Next Generation Railway Communications
P. Fraga-Lamas, J. RodrÃguez-Piñeiro, J. A. GarcÃa-Naya +1
In an increasingly demanding marketplace that will put great strain on railway services, research on broadband wireless communication must continue to strive for improvement. Based…
A Review on Internet of Things for Defense and Public Safety
Paula Fraga-Lamas, Tiago M. Fernández-Caramés, Manuel Suárez-Albela +2
The Internet of Things (IoT) is undeniably transforming the way that organizations communicate and organize everyday businesses and industrial procedures. Its adoption has proven w…
Reverse Engineering and Security Evaluation of Commercial Tags for RFID-Based IoT Applications
Tiago M. Fernández-Caramés, Paula Fraga-Lamas, Manuel Suárez-Albela +1
The Internet of Things (IoT) is a distributed system of physical objects that requires the seamless integration of hardware (e.g., sensors, actuators, electronics) and network comm…
Lattice-Based Analog Mappings for Low-Latency Wireless Sensor Networks
Pedro Suárez-Casal, Ãscar Fresnedo, Darian Pérez-Adán +1
We consider the transmission of spatially correlated analog information in a wireless sensor network (WSN) through fading single-input and multiple-output (SIMO) multiple access ch…
A Rank-Constrained Coordinate Ascent Approach to Hybrid Precoding for the Downlink of Wideband Massive (MIMO) Systems
José P. González-Coma, Ãscar Fresnedo, Luis Castedo
An innovative approach to hybrid analog-digital precoding for the downlink of wideband massive MIMO systems is developed. The proposed solution, termed Rank-Constrained Coordinate…