Active Reconfigurable Intelligent Surface Enhanced Internet of Medical Things

Zhengyu Zhu; Jiaxue Li; Zheng Chu; Jing Liang; Hehao Niu; De Mi; Cheng Yin; Peijia Liu

doi:10.1109/JBHI.2023.3343497

Active Reconfigurable Intelligent Surface Enhanced Internet of Medical Things

Zhengyu Zhu, Jiaxue Li, Zheng Chu, Jing Liang, Hehao Niu, De Mi, Cheng Yin, Peijia Liu

Department of Electrical and Electronic Engineering

Research output: Journal Publication › Article › peer-review

1 Citation (Scopus)

Abstract

The incredible potentiality of reconfigurable intelligent surface (RIS) in addressing power supply and obstacle environment of Internet of Medical Things (IoMT) has been capturing our interest. Considering the nettlesome “double-fading” effect introduced by passive RIS, we investigate an active RIS-enhanced IoMT system in this paper, where the wireless power transfer (WPT) from power station (PS) to IoMT devices and the wireless information transfer (WIT) from IoMT devices to the access point (AP) are both implemented with the assistance of active RIS. Aiming to maximize the sum throughput of the considered IoMT system, a joint design of time schedules and reflecting coefficient matrices of the active RIS is proposed. Trapped by the non-convex and obstinate optimization problem, we explore the semi-definite programming (SDP) relaxation and successive convex approximation (SCA) techniques based on alternating optimization (AO) algorithm. Simulation results verify our solution approach to the intractable optimization problem and showcase the boosted spectrum and energy efficiency of the active RIS-enhanced IoMT system.

Original language	English
Pages (from-to)	1-10
Number of pages	10
Journal	IEEE Journal of Biomedical and Health Informatics
DOIs	https://doi.org/10.1109/JBHI.2023.3343497
Publication status	Accepted/In press - 2023

Keywords

Active reconfigurable intelligent surface
Bioinformatics
Communication system security
IoMT
Optimization
Resource management
Throughput
Wireless communication
Wireless sensor networks
alternating optimization
wireless information transfer
wireless power transfer

ASJC Scopus subject areas

Computer Science Applications
Health Informatics
Electrical and Electronic Engineering
Health Information Management

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/JBHI.2023.3343497

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title = "Active Reconfigurable Intelligent Surface Enhanced Internet of Medical Things",

abstract = "The incredible potentiality of reconfigurable intelligent surface (RIS) in addressing power supply and obstacle environment of Internet of Medical Things (IoMT) has been capturing our interest. Considering the nettlesome “double-fading” effect introduced by passive RIS, we investigate an active RIS-enhanced IoMT system in this paper, where the wireless power transfer (WPT) from power station (PS) to IoMT devices and the wireless information transfer (WIT) from IoMT devices to the access point (AP) are both implemented with the assistance of active RIS. Aiming to maximize the sum throughput of the considered IoMT system, a joint design of time schedules and reflecting coefficient matrices of the active RIS is proposed. Trapped by the non-convex and obstinate optimization problem, we explore the semi-definite programming (SDP) relaxation and successive convex approximation (SCA) techniques based on alternating optimization (AO) algorithm. Simulation results verify our solution approach to the intractable optimization problem and showcase the boosted spectrum and energy efficiency of the active RIS-enhanced IoMT system.",

keywords = "Active reconfigurable intelligent surface, Bioinformatics, Communication system security, IoMT, Optimization, Resource management, Throughput, Wireless communication, Wireless sensor networks, alternating optimization, wireless information transfer, wireless power transfer",

author = "Zhengyu Zhu and Jiaxue Li and Zheng Chu and Jing Liang and Hehao Niu and De Mi and Cheng Yin and Peijia Liu",

note = "Publisher Copyright: IEEE",

year = "2023",

doi = "10.1109/JBHI.2023.3343497",

language = "English",

pages = "1--10",

journal = "IEEE Journal of Biomedical and Health Informatics",

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T1 - Active Reconfigurable Intelligent Surface Enhanced Internet of Medical Things

AU - Zhu, Zhengyu

AU - Li, Jiaxue

AU - Chu, Zheng

AU - Liang, Jing

AU - Niu, Hehao

AU - Mi, De

AU - Yin, Cheng

AU - Liu, Peijia

N1 - Publisher Copyright: IEEE

PY - 2023

Y1 - 2023

N2 - The incredible potentiality of reconfigurable intelligent surface (RIS) in addressing power supply and obstacle environment of Internet of Medical Things (IoMT) has been capturing our interest. Considering the nettlesome “double-fading” effect introduced by passive RIS, we investigate an active RIS-enhanced IoMT system in this paper, where the wireless power transfer (WPT) from power station (PS) to IoMT devices and the wireless information transfer (WIT) from IoMT devices to the access point (AP) are both implemented with the assistance of active RIS. Aiming to maximize the sum throughput of the considered IoMT system, a joint design of time schedules and reflecting coefficient matrices of the active RIS is proposed. Trapped by the non-convex and obstinate optimization problem, we explore the semi-definite programming (SDP) relaxation and successive convex approximation (SCA) techniques based on alternating optimization (AO) algorithm. Simulation results verify our solution approach to the intractable optimization problem and showcase the boosted spectrum and energy efficiency of the active RIS-enhanced IoMT system.

AB - The incredible potentiality of reconfigurable intelligent surface (RIS) in addressing power supply and obstacle environment of Internet of Medical Things (IoMT) has been capturing our interest. Considering the nettlesome “double-fading” effect introduced by passive RIS, we investigate an active RIS-enhanced IoMT system in this paper, where the wireless power transfer (WPT) from power station (PS) to IoMT devices and the wireless information transfer (WIT) from IoMT devices to the access point (AP) are both implemented with the assistance of active RIS. Aiming to maximize the sum throughput of the considered IoMT system, a joint design of time schedules and reflecting coefficient matrices of the active RIS is proposed. Trapped by the non-convex and obstinate optimization problem, we explore the semi-definite programming (SDP) relaxation and successive convex approximation (SCA) techniques based on alternating optimization (AO) algorithm. Simulation results verify our solution approach to the intractable optimization problem and showcase the boosted spectrum and energy efficiency of the active RIS-enhanced IoMT system.

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KW - Bioinformatics

KW - Communication system security

KW - IoMT

KW - Optimization

KW - Resource management

KW - Throughput

KW - Wireless communication

KW - Wireless sensor networks

KW - alternating optimization

KW - wireless information transfer

KW - wireless power transfer

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JO - IEEE Journal of Biomedical and Health Informatics

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ER -

Active Reconfigurable Intelligent Surface Enhanced Internet of Medical Things

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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