Qiao, T;
Caot, Y;
Tang, J;
Zhao, N;
Wong, KK;
(2023)
Uplink Secure Communication via Intelligent Reflecting Surface and Energy-Harvesting Jammer.
In:
Proceedings of the GLOBECOM 2022 - IEEE Global Communications Conference.
(pp. pp. 3247-3252).
Institute of Electrical and Electronics Engineers (IEEE)
Preview |
Text
a542-qiao paper.pdf - Accepted Version Download (201kB) | Preview |
Abstract
In this paper, we investigate the uplink secure communication by combining intelligent reflecting surface (IRS) and energy-harvesting (EH) jammer. Specifically, we propose an IRS-aided secure scheme for the uplink transmission via an EH jammer, to fight against the malicious eavesdropper. An energy transfer (ET) phase and an information transmission (IT) phase are proposed in this scheme. In the ET phase, we optimize the phase-shift matrix of IRS to maximize the harvested energy of jammer. In the IT phase, the phase-shift matrix of IRS and time switching factor are jointly optimized to maximize the secrecy rate. To tackle the non-convex problem, we first decompose it into two subproblems to solve by capitalizing on semi-definite relaxation (SDR) and Lagrange duality. Then, the solutions to the original problem can be obtained by alternately optimizing the two subproblems. Simulation results show that the proposed Jammer-IRS assisted secure transmission scheme can significantly enhance the uplink security.
| Type: | Proceedings paper |
|---|---|
| Title: | Uplink Secure Communication via Intelligent Reflecting Surface and Energy-Harvesting Jammer |
| Event: | GLOBECOM 2022 - IEEE Global Communications Conference |
| Location: | Rio de Janeiro, Brazil |
| Dates: | 4th-8th December 2022 |
| ISBN-13: | 9781665435406 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/GLOBECOM48099.2022.10000693 |
| Publisher version: | https://doi.org/10.1109/GLOBECOM48099.2022.1000069... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| Keywords: | Energy harvesting, intelligent reflecting surface, jamming, physical layer security, time switching |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10164840 |
Archive Staff Only
 |
View Item |
