Multi-Device Charging RIS-Aided Wireless Power Transfer Systems

Nguyen Minh Tran; Muhammad Miftahul Amri; Je Hyeon Park; Dong In Kim; Kae Won Choi

doi:10.1109/ICTC52510.2021.9620910

Multi-Device Charging RIS-Aided Wireless Power Transfer Systems

Nguyen Minh Tran
, Muhammad Miftahul Amri
, Je Hyeon Park
, Dong In Kim
, Kae Won Choi

Department of Electronic and Electrical Engineering

Sungkyunkwan University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Scopus citations

Abstract

As wireless charging devices are booming, wireless power transfer (WPT) systems are demanded to charge multiple devices simultaneously. Currently, reconfigurable intelligent surface (RIS) is emerging as a potential candidate for WPT applications owing to its energy-efficient feature. In this paper, we study multi-focus schemes that enable the RIS to charge multiple receivers simultaneously. We propose two multi-focus techniques: pattern addition (PA) and random unit cell interleaving (RUI). The two proposed methods can skillfully control received power levels with different weight factors given to each receiver. Mathematical analysis is rigorously presented and then verified by simulation. Simulation results demonstrate that wireless power relayed by the RIS is well distributed to all receivers.

Original language	English
Title of host publication	ICTC 2021 - 12th International Conference on ICT Convergence
Subtitle of host publication	Beyond the Pandemic Era with ICT Convergence Innovation
Publisher	IEEE Computer Society
Pages	839-844
Number of pages	6
ISBN (Electronic)	9781665423830
DOIs	https://doi.org/10.1109/ICTC52510.2021.9620910
State	Published - 2021
Event	12th International Conference on Information and Communication Technology Convergence, ICTC 2021 - Jeju Island, Korea, Republic of Duration: 20 Oct 2021 → 22 Oct 2021

Publication series

Name	International Conference on ICT Convergence
Volume	2021-October
ISSN (Print)	2162-1233
ISSN (Electronic)	2162-1241

Conference

Conference	12th International Conference on Information and Communication Technology Convergence, ICTC 2021
Country/Territory	Korea, Republic of
City	Jeju Island
Period	20/10/21 → 22/10/21

UN SDGs

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

SDG 7 Affordable and Clean Energy

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10.1109/ICTC52510.2021.9620910

Cite this

Tran, N. M., Amri, M. M., Park, J. H., Kim, D. I., & Choi, K. W. (2021). Multi-Device Charging RIS-Aided Wireless Power Transfer Systems. In ICTC 2021 - 12th International Conference on ICT Convergence: Beyond the Pandemic Era with ICT Convergence Innovation (pp. 839-844). (International Conference on ICT Convergence; Vol. 2021-October). IEEE Computer Society. https://doi.org/10.1109/ICTC52510.2021.9620910

@inproceedings{c026fc67ef524501850486cc7fea3d35,

title = "Multi-Device Charging RIS-Aided Wireless Power Transfer Systems",

abstract = "As wireless charging devices are booming, wireless power transfer (WPT) systems are demanded to charge multiple devices simultaneously. Currently, reconfigurable intelligent surface (RIS) is emerging as a potential candidate for WPT applications owing to its energy-efficient feature. In this paper, we study multi-focus schemes that enable the RIS to charge multiple receivers simultaneously. We propose two multi-focus techniques: pattern addition (PA) and random unit cell interleaving (RUI). The two proposed methods can skillfully control received power levels with different weight factors given to each receiver. Mathematical analysis is rigorously presented and then verified by simulation. Simulation results demonstrate that wireless power relayed by the RIS is well distributed to all receivers.",

author = "Tran, \{Nguyen Minh\} and Amri, \{Muhammad Miftahul\} and Park, \{Je Hyeon\} and Kim, \{Dong In\} and Choi, \{Kae Won\}",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 12th International Conference on Information and Communication Technology Convergence, ICTC 2021 ; Conference date: 20-10-2021 Through 22-10-2021",

year = "2021",

doi = "10.1109/ICTC52510.2021.9620910",

language = "English",

series = "International Conference on ICT Convergence",

publisher = "IEEE Computer Society",

pages = "839--844",

booktitle = "ICTC 2021 - 12th International Conference on ICT Convergence",

}

Tran, NM, Amri, MM, Park, JH, Kim, DI & Choi, KW 2021, Multi-Device Charging RIS-Aided Wireless Power Transfer Systems. in ICTC 2021 - 12th International Conference on ICT Convergence: Beyond the Pandemic Era with ICT Convergence Innovation. International Conference on ICT Convergence, vol. 2021-October, IEEE Computer Society, pp. 839-844, 12th International Conference on Information and Communication Technology Convergence, ICTC 2021, Jeju Island, Korea, Republic of, 20/10/21. https://doi.org/10.1109/ICTC52510.2021.9620910

Multi-Device Charging RIS-Aided Wireless Power Transfer Systems. / Tran, Nguyen Minh; Amri, Muhammad Miftahul; Park, Je Hyeon et al.
ICTC 2021 - 12th International Conference on ICT Convergence: Beyond the Pandemic Era with ICT Convergence Innovation. IEEE Computer Society, 2021. p. 839-844 (International Conference on ICT Convergence; Vol. 2021-October).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Multi-Device Charging RIS-Aided Wireless Power Transfer Systems

AU - Tran, Nguyen Minh

AU - Amri, Muhammad Miftahul

AU - Park, Je Hyeon

AU - Kim, Dong In

AU - Choi, Kae Won

PY - 2021

Y1 - 2021

N2 - As wireless charging devices are booming, wireless power transfer (WPT) systems are demanded to charge multiple devices simultaneously. Currently, reconfigurable intelligent surface (RIS) is emerging as a potential candidate for WPT applications owing to its energy-efficient feature. In this paper, we study multi-focus schemes that enable the RIS to charge multiple receivers simultaneously. We propose two multi-focus techniques: pattern addition (PA) and random unit cell interleaving (RUI). The two proposed methods can skillfully control received power levels with different weight factors given to each receiver. Mathematical analysis is rigorously presented and then verified by simulation. Simulation results demonstrate that wireless power relayed by the RIS is well distributed to all receivers.

AB - As wireless charging devices are booming, wireless power transfer (WPT) systems are demanded to charge multiple devices simultaneously. Currently, reconfigurable intelligent surface (RIS) is emerging as a potential candidate for WPT applications owing to its energy-efficient feature. In this paper, we study multi-focus schemes that enable the RIS to charge multiple receivers simultaneously. We propose two multi-focus techniques: pattern addition (PA) and random unit cell interleaving (RUI). The two proposed methods can skillfully control received power levels with different weight factors given to each receiver. Mathematical analysis is rigorously presented and then verified by simulation. Simulation results demonstrate that wireless power relayed by the RIS is well distributed to all receivers.

UR - https://www.scopus.com/pages/publications/85122950971

U2 - 10.1109/ICTC52510.2021.9620910

DO - 10.1109/ICTC52510.2021.9620910

M3 - Conference contribution

AN - SCOPUS:85122950971

T3 - International Conference on ICT Convergence

SP - 839

EP - 844

BT - ICTC 2021 - 12th International Conference on ICT Convergence

PB - IEEE Computer Society

T2 - 12th International Conference on Information and Communication Technology Convergence, ICTC 2021

Y2 - 20 October 2021 through 22 October 2021

ER -

Multi-Device Charging RIS-Aided Wireless Power Transfer Systems

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UN SDGs

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