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 language | English |
|---|---|
| Title of host publication | Energy Harvesting for Wireless Sensor Networks |
| Subtitle of host publication | Technology, Components and System Design |
| Editors | Olfa Kanoun |
| Place of Publication | Berlin Germany |
| Publisher | De Gruyter Mouton |
| Pages | 161-179 |
| Number of pages | 19 |
| ISBN (Electronic) | 9783110445053, 9783110436112 |
| ISBN (Print) | 9783110443684 |
| DOIs | |
| Publication status | Published - 2019 |
Keywords
- Beamforming
- Nonlinear energy harvesting
- Secure communication
- Wireless information and power transfer
Cite this
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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 proceeding › Chapter (Book) › Research › peer-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 -