Energy-Efficient MISO Wireless Powered Communications

Hunwoo Lim, Taewon Hwang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper considers a multiple-input single-output (MISO) wireless powered communication network (WPCN) and aims to maximize the energy efficiencies (EEs) of the individual users. Specifically, we study user-wise EE maximization problems for TDMA-based WPCN (T-WPCN) and SDMA-based WPCN (S-WPCN), which are both non-convex due to their sum-of-ratios objective functions. We first solve the T-WPCN problem by transforming into a convex parametric problem and obtain its optimal solution by iteratively solving convex problems. Next, we solve the S-WPCN problem by convexifying it using feasible set reduction scheme. We show that T-WPCN outperforms S-WPCN when there is no minimum throughput requirement, while we can observe that S-WPCN outperforms T-WPCN when minimum throughput requirement is high. Simulation results verify our theoretical findings and show the effectiveness of our proposed schemes.

Original languageEnglish
Title of host publication2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538655535
DOIs
Publication statusPublished - 2019 Feb 25
Event16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019 - Las Vegas, United States
Duration: 2019 Jan 112019 Jan 14

Publication series

Name2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019

Conference

Conference16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019
CountryUnited States
CityLas Vegas
Period19/1/1119/1/14

Fingerprint

Space division multiple access
Time division multiple access
Telecommunication networks
Communication
Energy efficiency
Throughput

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

Lim, H., & Hwang, T. (2019). Energy-Efficient MISO Wireless Powered Communications. In 2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019 [8651753] (2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CCNC.2019.8651753
Lim, Hunwoo ; Hwang, Taewon. / Energy-Efficient MISO Wireless Powered Communications. 2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. (2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019).
@inproceedings{d7f18c37dfd242c4b567fa0eae783123,
title = "Energy-Efficient MISO Wireless Powered Communications",
abstract = "This paper considers a multiple-input single-output (MISO) wireless powered communication network (WPCN) and aims to maximize the energy efficiencies (EEs) of the individual users. Specifically, we study user-wise EE maximization problems for TDMA-based WPCN (T-WPCN) and SDMA-based WPCN (S-WPCN), which are both non-convex due to their sum-of-ratios objective functions. We first solve the T-WPCN problem by transforming into a convex parametric problem and obtain its optimal solution by iteratively solving convex problems. Next, we solve the S-WPCN problem by convexifying it using feasible set reduction scheme. We show that T-WPCN outperforms S-WPCN when there is no minimum throughput requirement, while we can observe that S-WPCN outperforms T-WPCN when minimum throughput requirement is high. Simulation results verify our theoretical findings and show the effectiveness of our proposed schemes.",
author = "Hunwoo Lim and Taewon Hwang",
year = "2019",
month = "2",
day = "25",
doi = "10.1109/CCNC.2019.8651753",
language = "English",
series = "2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019",
address = "United States",

}

Lim, H & Hwang, T 2019, Energy-Efficient MISO Wireless Powered Communications. in 2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019., 8651753, 2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019, Institute of Electrical and Electronics Engineers Inc., 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019, Las Vegas, United States, 19/1/11. https://doi.org/10.1109/CCNC.2019.8651753

Energy-Efficient MISO Wireless Powered Communications. / Lim, Hunwoo; Hwang, Taewon.

2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. 8651753 (2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Energy-Efficient MISO Wireless Powered Communications

AU - Lim, Hunwoo

AU - Hwang, Taewon

PY - 2019/2/25

Y1 - 2019/2/25

N2 - This paper considers a multiple-input single-output (MISO) wireless powered communication network (WPCN) and aims to maximize the energy efficiencies (EEs) of the individual users. Specifically, we study user-wise EE maximization problems for TDMA-based WPCN (T-WPCN) and SDMA-based WPCN (S-WPCN), which are both non-convex due to their sum-of-ratios objective functions. We first solve the T-WPCN problem by transforming into a convex parametric problem and obtain its optimal solution by iteratively solving convex problems. Next, we solve the S-WPCN problem by convexifying it using feasible set reduction scheme. We show that T-WPCN outperforms S-WPCN when there is no minimum throughput requirement, while we can observe that S-WPCN outperforms T-WPCN when minimum throughput requirement is high. Simulation results verify our theoretical findings and show the effectiveness of our proposed schemes.

AB - This paper considers a multiple-input single-output (MISO) wireless powered communication network (WPCN) and aims to maximize the energy efficiencies (EEs) of the individual users. Specifically, we study user-wise EE maximization problems for TDMA-based WPCN (T-WPCN) and SDMA-based WPCN (S-WPCN), which are both non-convex due to their sum-of-ratios objective functions. We first solve the T-WPCN problem by transforming into a convex parametric problem and obtain its optimal solution by iteratively solving convex problems. Next, we solve the S-WPCN problem by convexifying it using feasible set reduction scheme. We show that T-WPCN outperforms S-WPCN when there is no minimum throughput requirement, while we can observe that S-WPCN outperforms T-WPCN when minimum throughput requirement is high. Simulation results verify our theoretical findings and show the effectiveness of our proposed schemes.

UR - http://www.scopus.com/inward/record.url?scp=85063482353&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85063482353&partnerID=8YFLogxK

U2 - 10.1109/CCNC.2019.8651753

DO - 10.1109/CCNC.2019.8651753

M3 - Conference contribution

T3 - 2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019

BT - 2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019

PB - Institute of Electrical and Electronics Engineers Inc.

ER -

Lim H, Hwang T. Energy-Efficient MISO Wireless Powered Communications. In 2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019. Institute of Electrical and Electronics Engineers Inc. 2019. 8651753. (2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019). https://doi.org/10.1109/CCNC.2019.8651753