Hendrik Rogier

Latest

• A 4 Chi 4 millimeterwave-frequency Butler matrix in grounded co-planar waveguide technology for compact integration with 5G antenna arrays
• Adaptive pilot allocation for estimating sparse uplink MU-MIMO-OFDM channels
• LoRa signal synchronization and detection at extremely low signal-to-noise ratios
• mmWave-over-fiber distributed antenna systems for reliable multi-GbpsWireless communication
• Characterizing the impact of Doppler effects on body-centric LoRa links with SDR
• Effect of random antenna element displacements on sparse-UCA-Root-MUSIC direction-of-arrival estimation
• Stochastic framework for evaluating the effect of displaced antenna elements on DOA estimation
• Cooperative hybrid localization using Gaussian processes and belief propagation
• Textile antenna systems for positioning and off-body communication
• Characterization of measured indoor off-body MIMO channels with correlated fading, correlated shadowing and constant path loss
• Energy-efficient off-body data transmission by means of Antenna diversity and tracking of the time-variant wireless channel state
• Indoor off-body wireless communication: static beamforming versus space-time coding
• Power-efficient body-centric communications
• Indoor off-body wireless MIMO communication with dual polarized textile antennas
• Reliable MIMO communication between firefighters equipped with wearable antennas and a base station using space-time codes
• Application of channel models to indoor off-body wireless MIMO communication with textile antennas
• Channel characterization and robust tracking for diversity reception over time-variant off-body wireless communication channels
• Dynamic link performance analysis of a rescue worker's off-body communication system using integrated textile antennas
• Wireless communication for firefighters using dual-polarized textile antennas integrated in their garment
• A wireless off-body communication link with receive diversity
• Application of channel models to indoor off-body wireless MIMO communication with textile antennas
• Indoor off-body communication based on a textile multi-antenna system integrated in clothing for rescue workers
• Off-body communication in a multipath environment over time-variant channels using multiple textile antennas for the 2.45 GHz band
• The IAP-MOTION project: mobile multimedia communication systems and networks