TY - GEN
T1 - Double-IRS Assisted Proactive Eavesdropping with Cooperative Reflecting and Backscatter
AU - Cao, Yurui
AU - Wang, Jiadai
AU - Liu, Jiajia
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In this paper, we introduce two double-IRS strategies to enhance proactive eavesdropping, namely Double-IRS Enhancing Strategy (DES) and Double-IRS Enhancing-Jamming Strategy (DEJS). In the former strategy, both cooperative IRSs reflect the incident signal passively. In the latter strategy, one IRS performs passive reflection while the other IRS acts as a passive jammer to modulate the incident signal into the jamming signal to deteriorate the suspicious link. Based on these two strategies, the semidefinite relaxation (SDR) technique and the bisection search method are applied to optimize the reflection coefficients at two IRSs, aiming at maximizing the effective eavesdropping rate. Finally, numerical evaluations are conducted to verify the effectiveness of our proposed schemes.
AB - In this paper, we introduce two double-IRS strategies to enhance proactive eavesdropping, namely Double-IRS Enhancing Strategy (DES) and Double-IRS Enhancing-Jamming Strategy (DEJS). In the former strategy, both cooperative IRSs reflect the incident signal passively. In the latter strategy, one IRS performs passive reflection while the other IRS acts as a passive jammer to modulate the incident signal into the jamming signal to deteriorate the suspicious link. Based on these two strategies, the semidefinite relaxation (SDR) technique and the bisection search method are applied to optimize the reflection coefficients at two IRSs, aiming at maximizing the effective eavesdropping rate. Finally, numerical evaluations are conducted to verify the effectiveness of our proposed schemes.
KW - Intelligent reflecting surface (IRS)
KW - IRS backscatter
KW - physical layer security
KW - proactive eavesdropping
UR - http://www.scopus.com/inward/record.url?scp=85178293764&partnerID=8YFLogxK
U2 - 10.1109/ICC45041.2023.10279324
DO - 10.1109/ICC45041.2023.10279324
M3 - 会议稿件
AN - SCOPUS:85178293764
T3 - IEEE International Conference on Communications
SP - 1917
EP - 1921
BT - ICC 2023 - IEEE International Conference on Communications
A2 - Zorzi, Michele
A2 - Tao, Meixia
A2 - Saad, Walid
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Conference on Communications, ICC 2023
Y2 - 28 May 2023 through 1 June 2023
ER -