Proceedings ArticleDOI
Optimal Operation of Multitone Waveforms in Low RF-Power Receivers
Mahmoud H. Ouda,Paul D. Mitcheson,Bruno Clerckx +2 more
- pp 8639426
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TLDR
The low-power multitone waveforms can be considered as a voltage sensitivity booster rather than a PCE efficiency booster, and boosted rectified voltage is the key advantage of the multitone signals that leads to the enhancement in the overall efficiency of the low-RF power receiver.Abstract:
This paper presents a study of the optimal performance of multitone signals in low RF-power transfer and energy harvesters. The choice of the load can be tricky, showing an advantage of a certain type of signals over another. For low RF power (−17dBm), the multitone signals do not improve the peak RF-to-dc power conversion efficiency (PCE) over the continuous wave (CW) single-tone signal, if the optimal load is selected for each case, however, the multitone signals maintain that peak PCE of ∼ 47% over higher output voltage (i.e: larger loads), and consequently enable more efficient dc-to-dc voltage boosting or even eliminate the need for the voltage booster in the RF power receiver. Thus, the low-power multitone waveforms can be considered as a voltage sensitivity booster rather than a PCE efficiency booster. This boosted rectified voltage is the key advantage of the multitone signals that leads to the enhancement in the overall efficiency of the low-RF power receiver.read more
Citations
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Signal and System Design for Wireless Power Transfer: Prototype, Experiment and Validation
TL;DR: Experimental results fully validate the observations predicted from the theoretical signal designs and confirm the crucial and beneficial role played by the energy harvester nonlinearity in harvested DC power over conventional single-antenna/multi-ant Jenna continuous wave systems.
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Simultaneous Wireless Information and Power Transfer (SWIPT) for Internet of Things: Novel Receiver Design and Experimental Validation
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Wireless Power Transfer for Future Networks: Signal Processing, Machine Learning, Computing, and Sensing
TL;DR: In this article, two different design methodologies: the model and optimize approach relying on analytical system models, modern convex optimization, and communication/information theory, and the learning approach based on data-driven end-to-end learning and physics-based learning are discussed.
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Foundations of Wireless Information and Power Transfer: Theory, Prototypes, and Experiments
TL;DR: The foundations of a future wireless networks equipped with WPT and WIPT, which will enable trillions of future low-power devices to sense, compute, connect, and energize anywhere, anytime, and on the move, are reviewed.
References
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Journal ArticleDOI
Waveform Design for Wireless Power Transfer
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Proceedings ArticleDOI
Power-optimized waveforms for improving the range and reliability of RFID systems
TL;DR: The power-optimized waveform (POW) is a new type of multiple-tone carrier and modulation scheme that is designed to improve the read range and power efficiency of charge pump-based passive RFICs.
Journal ArticleDOI
Optimum behavior: Wireless power transmission system design through behavioral models and efficient synthesis techniques
TL;DR: The final goal of most of these challenges is to take advantage of the nonlinear nature of the rectifying elements in order to maximize the RF-to-dc conversion efficiency in the receiving end of WPT systems.
Journal ArticleDOI
Low-Complexity Adaptive Multisine Waveform Design for Wireless Power Transfer
TL;DR: A low-complexity channel-adaptive waveform design whose performance is very close to that of the optimal design is proposed, with gains in dc output power of 100% over conventional waveforms.
Journal ArticleDOI
RF Energy Harvesting From Multi-Tone and Digitally Modulated Signals
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