8 papers
Physically Large Apertures for Wireless Power Transfer: Performance and Regulatory Aspects
Benjamin J. B. Deutschmann, Ulrich Muehlmann, Ahmet Kaplan +7
Wireless power transfer (WPT) is a promising service for the Internet of Things, providing a cost-effective and sustainable solution to deploy so-called energy-neutral devices on a…
Experimental Study of Interference Suppression for Backscatter Communication in Distributed MIMO
Ahmet Kaplan, Gilles Callebaut, Jarne Van Mulders +1
Bistatic backscatter communication requires strong illumination of a backscatter device (BD), while a spatially separated reader detects the weak modulated reflection. In practice,…
Reciprocity Calibration of Dual-Antenna Repeaters via MMSE Estimation
Shoma Hara, Takumi Takahashi, Hiroki Iimori +2
This paper proposes a novel Bayesian reciprocity calibration method that consistently ensures uplink and downlink channel reciprocity in repeater-assisted multiple-input multiple-o…
Hybrid Channel Estimation with Quantized Phase Feedback for Over-the-Air Computation
Martin Dahl, Erik G. Larsson
To reduce the signaling overhead of over-the-air computation, a hybrid channel estimation scheme is proposed, where reciprocity-based and feedback-based channel estimation are comb…
Drone Surveillance via Coordinated Beam Sweeping in MIMO-ISAC Networks
Palatip Jopanya, Diana P. M. Osorio, Erik G. Larsson
This paper introduces a scheme for drone surveillance coordinated with the fifth generation (5G) synchronization signal block (SSB) cell-search procedure to simultaneously detect l…
Joint Access Point Selection and Beamforming Design for Bistatic Backscatter Communication
Ahmet Kaplan, Diana P. M. Osorio, Erik G. Larsson
Future Internet-of-Things networks are envisioned to use small and cheap sensor nodes with extremely low power consumption to avoid the extensive use of batteries. To provide conne…