Multi-antenna SWIPT systems with joint time switching

Hoon Lee; Kyoung Jae Lee; Hanjin Kim; Inkyu Lee

doi:10.1109/ICC.2018.8422267

Multi-antenna SWIPT systems with joint time switching

Hoon Lee, Kyoung Jae Lee, Hanjin Kim, Inkyu Lee

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

5 Citations (Scopus)

Abstract

In this paper, we investigate simultaneous wireless information and power transfer (SWIPT) where a multi- antenna transmitter sends data and energy to single antenna receivers with a time switching (TS) circuit. In this system, a general joint TS protocol is introduced which includes conventional TS schemes as special cases. We aim to analyze the achievable rate region of the joint TS under energy harvesting constraint at the receivers by jointly optimizing the TS ratios and the transmit covariance matrices. To tackle non-convex rate region characterization problems, we first decouple the original problems into several subproblems with fixed auxiliary variables. Then, the globally optimal TS ratios and the transmit covariance matrices are computed via convex optimization techniques. Numerical examples verify the efficacy of the proposed joint TS over conventional methods.

Original language	English
Title of host publication	2018 IEEE International Conference on Communications, ICC 2018 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)	9781538631805
DOIs	https://doi.org/10.1109/ICC.2018.8422267
Publication status	Published - 2018 Jul 27
Event	2018 IEEE International Conference on Communications, ICC 2018 - Kansas City, United States Duration: 2018 May 20 → 2018 May 24

Publication series

Name	IEEE International Conference on Communications
Volume	2018-May
ISSN (Print)	1550-3607

Other

Other	2018 IEEE International Conference on Communications, ICC 2018
Country/Territory	United States
City	Kansas City
Period	18/5/20 → 18/5/24

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation through the Ministry of Science, ICT, and Future Planning (MSIP), Korean Government under Grant 2017R1A2B3012316. The work of K.-J. Lee was supported by Korea Evaluation Institute of Industrial Technology (KEIT) grant funded by the Korea government (MOTIE) (No.10079984, Development of non-binding multimodal wireless power transfer technology for wearable device).

Publisher Copyright:
© 2018 IEEE.

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

Access to Document

10.1109/ICC.2018.8422267

Cite this

Multi-antenna SWIPT systems with joint time switching. / Lee, Hoon; Lee, Kyoung Jae; Kim, Hanjin et al.
2018 IEEE International Conference on Communications, ICC 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. 8422267 (IEEE International Conference on Communications; Vol. 2018-May).

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

Lee, H, Lee, KJ, Kim, H & Lee, I 2018, Multi-antenna SWIPT systems with joint time switching. in 2018 IEEE International Conference on Communications, ICC 2018 - Proceedings., 8422267, IEEE International Conference on Communications, vol. 2018-May, Institute of Electrical and Electronics Engineers Inc., 2018 IEEE International Conference on Communications, ICC 2018, Kansas City, United States, 18/5/20. https://doi.org/10.1109/ICC.2018.8422267

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title = "Multi-antenna SWIPT systems with joint time switching",

abstract = "In this paper, we investigate simultaneous wireless information and power transfer (SWIPT) where a multi- antenna transmitter sends data and energy to single antenna receivers with a time switching (TS) circuit. In this system, a general joint TS protocol is introduced which includes conventional TS schemes as special cases. We aim to analyze the achievable rate region of the joint TS under energy harvesting constraint at the receivers by jointly optimizing the TS ratios and the transmit covariance matrices. To tackle non-convex rate region characterization problems, we first decouple the original problems into several subproblems with fixed auxiliary variables. Then, the globally optimal TS ratios and the transmit covariance matrices are computed via convex optimization techniques. Numerical examples verify the efficacy of the proposed joint TS over conventional methods.",

author = "Hoon Lee and Lee, {Kyoung Jae} and Hanjin Kim and Inkyu Lee",

note = "Funding Information: This work was supported by the National Research Foundation through the Ministry of Science, ICT, and Future Planning (MSIP), Korean Government under Grant 2017R1A2B3012316. The work of K.-J. Lee was supported by Korea Evaluation Institute of Industrial Technology (KEIT) grant funded by the Korea government (MOTIE) (No.10079984, Development of non-binding multimodal wireless power transfer technology for wearable device). Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE International Conference on Communications, ICC 2018 ; Conference date: 20-05-2018 Through 24-05-2018",

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N2 - In this paper, we investigate simultaneous wireless information and power transfer (SWIPT) where a multi- antenna transmitter sends data and energy to single antenna receivers with a time switching (TS) circuit. In this system, a general joint TS protocol is introduced which includes conventional TS schemes as special cases. We aim to analyze the achievable rate region of the joint TS under energy harvesting constraint at the receivers by jointly optimizing the TS ratios and the transmit covariance matrices. To tackle non-convex rate region characterization problems, we first decouple the original problems into several subproblems with fixed auxiliary variables. Then, the globally optimal TS ratios and the transmit covariance matrices are computed via convex optimization techniques. Numerical examples verify the efficacy of the proposed joint TS over conventional methods.

AB - In this paper, we investigate simultaneous wireless information and power transfer (SWIPT) where a multi- antenna transmitter sends data and energy to single antenna receivers with a time switching (TS) circuit. In this system, a general joint TS protocol is introduced which includes conventional TS schemes as special cases. We aim to analyze the achievable rate region of the joint TS under energy harvesting constraint at the receivers by jointly optimizing the TS ratios and the transmit covariance matrices. To tackle non-convex rate region characterization problems, we first decouple the original problems into several subproblems with fixed auxiliary variables. Then, the globally optimal TS ratios and the transmit covariance matrices are computed via convex optimization techniques. Numerical examples verify the efficacy of the proposed joint TS over conventional methods.

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Multi-antenna SWIPT systems with joint time switching

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