RIS-Empowered Non-Linear Energy Harvesting Communications Over Nakagami-m Channels

We propose novel reconfigurable-intelligent-surface (RIS)-based energy harvesting (EH) systems with linear EH (L-EH) and non-linear EH (NL-EH) models where channels are exposed to Nakagami-<inline-formula> <tex-math notation="LaTeX">m </tex-math></inline-formula> fa...

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Bibliographic Details
Published inIEEE communications letters Vol. 26; no. 9; pp. 2215 - 2219
Main Authors Alakoca, Hakan, Babaei, Mohammadreza, Durak-Ata, Lutfiye, Basar, Ertugrul
Format Journal Article
LanguageEnglish
Published New York IEEE 01.09.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Average harvested power
Channels
Communication system security
Data processing
Energy harvesting
outage probability
Power system reliability
Probability
reconfigurable intelligent surfaces
Signal to noise ratio
Systems design
Throughput
Wireless communication
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Summary:We propose novel reconfigurable-intelligent-surface (RIS)-based energy harvesting (EH) systems with linear EH (L-EH) and non-linear EH (NL-EH) models where channels are exposed to Nakagami-<inline-formula> <tex-math notation="LaTeX">m </tex-math></inline-formula> fading. We also compare two RIS-based EH systems in terms of RIS locations, namely RIS-EH and RIS-information processing (RIS-IP). In the RIS-EH, RIS increases the amount of harvested energy, while in the RIS-IP, RIS is utilized to improve the information processing link. Closed-formed expressions of throughput, outage probability, and average harvested power are derived and confirmed via simulation. The L-EH model overestimates system performance, while the NL-EH model provides a realistic interpretation of EH system design.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2022.3182482