Wireless communication through reconfigurable intelligent surfaces with multi-antenna energy harvesting

Faisal Alanazi

doi:10.1007/s11760-021-01938-x

Wireless communication through reconfigurable intelligent surfaces with multi-antenna energy harvesting

Faisal Alanazi

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The paper derives the throughput of wireless communications using reconfigurable intelligent surfaces (RIS) with energy harvesting. The base station (BS) harvests energy using radio frequency signals received from node A over n_r antennas. The harvested energy is used to transmit data to N users. We optimize harvesting duration to maximize the throughput. We also suggest the use of two RIS. The first RIS is placed between node A and BS to improve the energy harvesting process. The second RIS is placed between BS and users so that all reflections have the same phase at each user. A set of reflectors is dedicated to each user. We show that wireless communication with eight and sixteen reflectors dedicated to a given user offers 12 and 18 dB gain with respect to wireless communications with energy harvesting and without RIS. The proposed wireless communications with two RIS with eight reflectors offer 27 dB gain with respect to wireless communications without RIS.

Original language	English
Pages (from-to)	1881-1888
Number of pages	8
Journal	Signal, Image and Video Processing
Volume	15
Issue number	8
DOIs	https://doi.org/10.1007/s11760-021-01938-x
State	Published - Nov 2021

Keywords

6G
Energy harvesting
Radio frequency (RF)
Rayleigh channels
RIS

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10.1007/s11760-021-01938-x

Cite this

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title = "Wireless communication through reconfigurable intelligent surfaces with multi-antenna energy harvesting",

abstract = "The paper derives the throughput of wireless communications using reconfigurable intelligent surfaces (RIS) with energy harvesting. The base station (BS) harvests energy using radio frequency signals received from node A over nr antennas. The harvested energy is used to transmit data to N users. We optimize harvesting duration to maximize the throughput. We also suggest the use of two RIS. The first RIS is placed between node A and BS to improve the energy harvesting process. The second RIS is placed between BS and users so that all reflections have the same phase at each user. A set of reflectors is dedicated to each user. We show that wireless communication with eight and sixteen reflectors dedicated to a given user offers 12 and 18 dB gain with respect to wireless communications with energy harvesting and without RIS. The proposed wireless communications with two RIS with eight reflectors offer 27 dB gain with respect to wireless communications without RIS.",

keywords = "6G, Energy harvesting, Radio frequency (RF), Rayleigh channels, RIS",

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AB - The paper derives the throughput of wireless communications using reconfigurable intelligent surfaces (RIS) with energy harvesting. The base station (BS) harvests energy using radio frequency signals received from node A over nr antennas. The harvested energy is used to transmit data to N users. We optimize harvesting duration to maximize the throughput. We also suggest the use of two RIS. The first RIS is placed between node A and BS to improve the energy harvesting process. The second RIS is placed between BS and users so that all reflections have the same phase at each user. A set of reflectors is dedicated to each user. We show that wireless communication with eight and sixteen reflectors dedicated to a given user offers 12 and 18 dB gain with respect to wireless communications with energy harvesting and without RIS. The proposed wireless communications with two RIS with eight reflectors offer 27 dB gain with respect to wireless communications without RIS.

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Wireless communication through reconfigurable intelligent surfaces with multi-antenna energy harvesting

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Keywords

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