Imperial College London
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ProfessorBrunoClerckx

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Wireless Communications and Signal Processing
 
 
 
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Contact

 

+44 (0)20 7594 6234b.clerckx Website

 
 
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Location

 

816Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Shen:2023:10.1109/JMW.2022.3227048,
author = {Shen, S and Kim, J and Clerckx, B},
doi = {10.1109/JMW.2022.3227048},
journal = {IEEE Journal of Microwaves},
pages = {29--42},
title = {Closed-loop wireless power transfer with adaptive waveform and beamforming: design, prototype, and experiment},
url = {http://dx.doi.org/10.1109/JMW.2022.3227048},
volume = {3},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A closed-loop far-field wireless power transfer (WPT) system with adaptive waveform and beamforming using limited feedback is designed, prototyped, and experimented. Spatial domain and frequency domain are jointly exploited by utilizing waveform and beamforming at the transmitter in WPT system to adapt to the multipath fading channel and boost the output dc power. A closed-loop architecture based on a codebook design and an over-the-air limited feedback with low complexity is proposed. The codebook consists of multiple codewords where each codeword represents particular waveform and beamforming. The transmitter sweeps through the codebook and the receiver then feeds the optimal codeword index back to the transmitter, so that the waveform and beamforming can be adaptive for maximizing the output dc power without requiring explicit channel estimation and the knowledge of accurate Channel State Information. The proposed closed-loop WPT with adaptive waveform and beamforming using limited feedback is prototyped using a Software Defined Radio equipment and measured in two real indoor environments. It is experimentally shown that the proposed closed-loop WPT with adaptive waveform and beamforming is able to enhance the output dc power by up to 14.7 dB in comparison with conventional 1-tone 1-antenna WPT system.
AU  - Shen,S
AU  - Kim,J
AU  - Clerckx,B
DO  - 10.1109/JMW.2022.3227048
EP  - 42
PY  - 2023///
SN  - 2692-8388
SP  - 29
TI  - Closed-loop wireless power transfer with adaptive waveform and beamforming: design, prototype, and experiment
T2  - IEEE Journal of Microwaves
UR  - http://dx.doi.org/10.1109/JMW.2022.3227048
UR  - http://hdl.handle.net/10044/1/102032
VL  - 3
ER  -
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