Article (Scientific journals)
Superposition of rectangular power pulses and CP-OFDM signal for SWIPT
Kassab, Hussein; Rottenberg, François; FEUILLEN, Thomas et al.
2022In EURASIP Journal on Wireless Communications and Networking, 2022 (1)
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Keywords :
CP-OFDM; Energy harvesting; Nonlinear rectifier model; SWIPT; Waveform design; WIT; WPT; Cyclic Prefix; Cyclic prefix of the orthogonal frequency-division multiplexing; Information and power transfers; Information transfers; Orthogonal frequency-division multiplexing; Rectifier model; Simultaneous wireless information and power transfer; Waveform designs; Wireless information transfer; Signal Processing; Computer Science Applications; Computer Networks and Communications
Abstract :
[en] Simultaneous wireless information and power transfer (SWIPT) has recently attracted researchers and may help to satisfy future technology demands. SWIPT allows wireless power transfer (WPT) and wireless information transfer (WIT) to coexist based on shared resources. Recent studies have shown that, due to the nonlinearity of the rectifiers, high-PAPR (peak to average power ratio) waveforms provide better performance in terms of energy harvesting, making the design of power signals essential. In addition, these power signals should consume the smallest amount of resources for the WIT. In this paper, a new waveform design is proposed where the information and power signals are superposed using the same frequency and time resources. The power signal is composed of a high peak modulated rectangular wave sent during the cyclic prefix of the orthogonal frequency-division multiplexing (CP-OFDM) system, which is discarded at the information receiver, such that it does not interfere with the OFDM data symbol. Although the pulse is restricted to be within the cyclic prefix, there might be a small amount of interference caused by channel dispersion. Simulations and measurements show that a good choice of signal parameters can minimize interference on the information symbols and simultaneously provide good performance in terms of energy harvesting.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Kassab, Hussein ;  Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Louvain la Neuve, Belgium
Rottenberg, François;  Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Louvain la Neuve, Belgium
FEUILLEN, Thomas  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SPARC ; Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Louvain la Neuve, Belgium
Wiame, Charles;  Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Louvain la Neuve, Belgium
Louveaux, Jérôme;  Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Louvain la Neuve, Belgium
External co-authors :
yes
Language :
English
Title :
Superposition of rectangular power pulses and CP-OFDM signal for SWIPT
Publication date :
December 2022
Journal title :
EURASIP Journal on Wireless Communications and Networking
ISSN :
1687-1472
eISSN :
1687-1499
Publisher :
Springer Science and Business Media Deutschland GmbH
Volume :
2022
Issue :
1
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
arc swipt by uclouvain
Funding text :
This work is supported by Université catholique de Louvain under the ARC SWIPT Project. Part of this work was published in [] and presented at the 2019 IEEE International Conference on Communications (ICC) in Shanghai, China.
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since 12 November 2024

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