Beamforming design for secure SWIPT systems under a non-linear energy harvesting model

Elena Boshkovska, Nikola Zlatanov, Xiaoming Chen, Derrick Wing Kwan Ng, Robert Schober

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review

Abstract

Simultaneous wireless information and power transfer (SWIPT) is an appealing solution to extend the lifetime of wireless nodes and, hence, alleviate the energy bottleneck of energy-constrained wireless communication networks. SWIPT advocates the dual use of radio frequency signals for conveying information and energy concurrently, which introduces a paradigm shift in system design. This chapter focuses on the use of multiple antennas to improve the efficiency of wireless power transfer (WPT) and secure information transmission. In particular, our objective is to maximize the secrecy rate of a SWIPT system via beamforming. To this end, we formulate a non-convex optimization problem based on a practical nonlinear energy harvesting model. The problem formulation allows for the use of an energy signal to improve WPT efficiency and to provide communication security. The globally optimal solution of the design problem is obtained via a one-dimensional search and semidefinite programming (SDP) relaxation. Numerical results demonstrate that the proposed design can achieve a significant gain in secrecy rate compared to two baseline schemes.

Original languageEnglish
Title of host publicationEnergy Harvesting for Wireless Sensor Networks
Subtitle of host publicationTechnology, Components and System Design
EditorsOlfa Kanoun
Place of PublicationBerlin Germany
PublisherDe Gruyter Mouton
Pages161-179
Number of pages19
ISBN (Electronic)9783110445053, 9783110436112
ISBN (Print)9783110443684
DOIs
Publication statusPublished - 2019

Keywords

  • Beamforming
  • Nonlinear energy harvesting
  • Secure communication
  • Wireless information and power transfer

Cite this

Boshkovska, E., Zlatanov, N., Chen, X., Ng, D. W. K., & Schober, R. (2019). Beamforming design for secure SWIPT systems under a non-linear energy harvesting model. In O. Kanoun (Ed.), Energy Harvesting for Wireless Sensor Networks: Technology, Components and System Design (pp. 161-179). Berlin Germany: De Gruyter Mouton. https://doi.org/10.1515/9783110445053-010
Boshkovska, Elena ; Zlatanov, Nikola ; Chen, Xiaoming ; Ng, Derrick Wing Kwan ; Schober, Robert. / Beamforming design for secure SWIPT systems under a non-linear energy harvesting model. Energy Harvesting for Wireless Sensor Networks: Technology, Components and System Design. editor / Olfa Kanoun. Berlin Germany : De Gruyter Mouton, 2019. pp. 161-179
@inbook{7e8b05bd46084d689e6951d2fd647d6e,
title = "Beamforming design for secure SWIPT systems under a non-linear energy harvesting model",
abstract = "Simultaneous wireless information and power transfer (SWIPT) is an appealing solution to extend the lifetime of wireless nodes and, hence, alleviate the energy bottleneck of energy-constrained wireless communication networks. SWIPT advocates the dual use of radio frequency signals for conveying information and energy concurrently, which introduces a paradigm shift in system design. This chapter focuses on the use of multiple antennas to improve the efficiency of wireless power transfer (WPT) and secure information transmission. In particular, our objective is to maximize the secrecy rate of a SWIPT system via beamforming. To this end, we formulate a non-convex optimization problem based on a practical nonlinear energy harvesting model. The problem formulation allows for the use of an energy signal to improve WPT efficiency and to provide communication security. The globally optimal solution of the design problem is obtained via a one-dimensional search and semidefinite programming (SDP) relaxation. Numerical results demonstrate that the proposed design can achieve a significant gain in secrecy rate compared to two baseline schemes.",
keywords = "Beamforming, Nonlinear energy harvesting, Secure communication, Wireless information and power transfer",
author = "Elena Boshkovska and Nikola Zlatanov and Xiaoming Chen and Ng, {Derrick Wing Kwan} and Robert Schober",
year = "2019",
doi = "10.1515/9783110445053-010",
language = "English",
isbn = "9783110443684",
pages = "161--179",
editor = "Olfa Kanoun",
booktitle = "Energy Harvesting for Wireless Sensor Networks",
publisher = "De Gruyter Mouton",
address = "Germany",

}

Boshkovska, E, Zlatanov, N, Chen, X, Ng, DWK & Schober, R 2019, Beamforming design for secure SWIPT systems under a non-linear energy harvesting model. in O Kanoun (ed.), Energy Harvesting for Wireless Sensor Networks: Technology, Components and System Design. De Gruyter Mouton, Berlin Germany, pp. 161-179. https://doi.org/10.1515/9783110445053-010

Beamforming design for secure SWIPT systems under a non-linear energy harvesting model. / Boshkovska, Elena; Zlatanov, Nikola; Chen, Xiaoming; Ng, Derrick Wing Kwan; Schober, Robert.

Energy Harvesting for Wireless Sensor Networks: Technology, Components and System Design. ed. / Olfa Kanoun. Berlin Germany : De Gruyter Mouton, 2019. p. 161-179.

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review

TY - CHAP

T1 - Beamforming design for secure SWIPT systems under a non-linear energy harvesting model

AU - Boshkovska, Elena

AU - Zlatanov, Nikola

AU - Chen, Xiaoming

AU - Ng, Derrick Wing Kwan

AU - Schober, Robert

PY - 2019

Y1 - 2019

N2 - Simultaneous wireless information and power transfer (SWIPT) is an appealing solution to extend the lifetime of wireless nodes and, hence, alleviate the energy bottleneck of energy-constrained wireless communication networks. SWIPT advocates the dual use of radio frequency signals for conveying information and energy concurrently, which introduces a paradigm shift in system design. This chapter focuses on the use of multiple antennas to improve the efficiency of wireless power transfer (WPT) and secure information transmission. In particular, our objective is to maximize the secrecy rate of a SWIPT system via beamforming. To this end, we formulate a non-convex optimization problem based on a practical nonlinear energy harvesting model. The problem formulation allows for the use of an energy signal to improve WPT efficiency and to provide communication security. The globally optimal solution of the design problem is obtained via a one-dimensional search and semidefinite programming (SDP) relaxation. Numerical results demonstrate that the proposed design can achieve a significant gain in secrecy rate compared to two baseline schemes.

AB - Simultaneous wireless information and power transfer (SWIPT) is an appealing solution to extend the lifetime of wireless nodes and, hence, alleviate the energy bottleneck of energy-constrained wireless communication networks. SWIPT advocates the dual use of radio frequency signals for conveying information and energy concurrently, which introduces a paradigm shift in system design. This chapter focuses on the use of multiple antennas to improve the efficiency of wireless power transfer (WPT) and secure information transmission. In particular, our objective is to maximize the secrecy rate of a SWIPT system via beamforming. To this end, we formulate a non-convex optimization problem based on a practical nonlinear energy harvesting model. The problem formulation allows for the use of an energy signal to improve WPT efficiency and to provide communication security. The globally optimal solution of the design problem is obtained via a one-dimensional search and semidefinite programming (SDP) relaxation. Numerical results demonstrate that the proposed design can achieve a significant gain in secrecy rate compared to two baseline schemes.

KW - Beamforming

KW - Nonlinear energy harvesting

KW - Secure communication

KW - Wireless information and power transfer

UR - http://www.scopus.com/inward/record.url?scp=85061467653&partnerID=8YFLogxK

U2 - 10.1515/9783110445053-010

DO - 10.1515/9783110445053-010

M3 - Chapter (Book)

SN - 9783110443684

SP - 161

EP - 179

BT - Energy Harvesting for Wireless Sensor Networks

A2 - Kanoun, Olfa

PB - De Gruyter Mouton

CY - Berlin Germany

ER -

Boshkovska E, Zlatanov N, Chen X, Ng DWK, Schober R. Beamforming design for secure SWIPT systems under a non-linear energy harvesting model. In Kanoun O, editor, Energy Harvesting for Wireless Sensor Networks: Technology, Components and System Design. Berlin Germany: De Gruyter Mouton. 2019. p. 161-179 https://doi.org/10.1515/9783110445053-010