Joint TS Beamforming and Hybrid TS-PS Receiving Design for SWIPT Systems

Wang, Shiqi; Ma, Lin; Wu, Wei

doi:10.1109/access.2021.3069053

Cited by 2 publications

(3 citation statements)

References 51 publications

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“…The output current i j (t) at each receive antenna j, is then channeled as input to a diplexer, which is processed by a lowpass filter (LPF) and a pass-band filter. As such, the diplexer successfully separates the low frequency components from the higher ones, as those described in (8).…”

Section: System Modelmentioning

confidence: 90%

“…Specifically, in [7], authors investigate SWIPT with a multi-antenna transmitter sending data and energy to single antenna receivers adopting a time switching circuit. Beamforming for energy transfer and information transmission is considered in [8], achieving the optimal energy efficiency. Finally, regarding the ID, coherent techniques are a challenging task, since the source needs to periodically send training symbols, which results in increased signaling overhead and processing burden [9].…”

Section: Introductionmentioning

confidence: 99%

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SWIPT with Diplexer-based Multiple-Antenna Rectification

Goudeli

Psomas

Krikidis

2022

2022 IEEE International Mediterranean Conference on Communications and Networking (MeditCom)

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Simultaneous wireless information and power transfer (SWIPT), with the use of radio frequency (RF) signals, has been identified as one of the promising technologies for the Internet of Things (IoT). In order to practically achieve SWIPT the received RF signal is split in time, power or spatial domain. Even for the solution of the integrated SWIPT receiver, the converted direct current power signal is split in the power domain. As such a portion of the received signal is used for information decoding and the other for energy harvesting (EH). Recently, a scheme which achieves SWIPT without split of the resources, with the use of a diplexer at the receiver's side, was proposed. In this paper, we adopt this solution and we extend it to a diplexer-based SWIPT receiver, with multipleantenna rectification circuits. As such we succeed SWIPT with enhanced performance, both in terms of symbol error rate and EH. We further compare the solution to the conventional integrated SWIPT receiver with multiple rectennas and prove the enhanced performance of the proposed solution. Non-coherent energy detection is succeeded with the use of a maximumlikelihood soft decoder, while the adopted modulation scheme is on-off keying (OOK). Furthermore, we investigate the effect of pulse energy modulation (PEM) in the system's performance. It is shown that PEM scheme enhances the performance in terms of EH, while lags behind in terms of information decoding, compared to OOK.

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Section: System Modelmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

SWIPT with Diplexer-based Multiple-Antenna Rectification

Goudeli

Psomas

Krikidis

2022

2022 IEEE International Mediterranean Conference on Communications and Networking (MeditCom)

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“…In [17], authors investigate SWIPT with a multi-antenna transmitter sending data and energy to single antenna receivers adopting a time switching circuit. Beamforming for energy transfer and information transmission is considered in [18], achieving the maximal energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

A Detection Scheme for Integrated SWIPT Receivers With Rectenna Arrays

Goudeli

Psomas

Krikidis

2023

IEEE Trans. on Green Commun. Netw.

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Smart devices and their applications led to a rapid evolution of the Internet of Things. As a result, there is an emerging need on energizing those low-power devices, while at the same time achieving information transfer. In this context, simultaneous wireless information and power transfer (SWIPT) is considered as an appealing technology, since it can power wirelessly and remotely such devices, simultaneously with information transfer. Motivated by this, we herein propose a system model with an integrated SWIPT receiver, succeeding enhanced performance in terms of information decoding (ID) and energy harvested (EH). Specifically, we adopt a single input multiple output topology, where at the receiver's side we examine two antenna architectures, one based on the direct-current (DC) combining and the other on the radio-frequency (RF) combining. For both schemes, we consider multiple receive antennas and rectifiers, comparing their performances. Furthermore, we adopt a piece-wise linear EH model, which takes into account the sensitivity and saturation effects of the rectifiers. By using a maximum likelihood-based soft decoding, a non-coherent energy detection is achieved. Finally, an asymptotic analysis is conducted, providing upper and lower bounds for ID and EH, respectively. Simulation results along with theoretical analysis, validate the enhanced performance both in terms of ID and EH.

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Joint TS Beamforming and Hybrid TS-PS Receiving Design for SWIPT Systems

Cited by 2 publications

References 51 publications

SWIPT with Diplexer-based Multiple-Antenna Rectification

SWIPT with Diplexer-based Multiple-Antenna Rectification

A Detection Scheme for Integrated SWIPT Receivers With Rectenna Arrays

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