TY - GEN
T1 - IRS-Assisted UAV Covert Communication via Location and Power Optimization
AU - Wang, Chao
AU - Chen, Xinying
AU - An, Jianping
AU - Xiong, Zehui
AU - Xing, Chengwen
AU - Zhao, Nan
AU - Niyato, Dusit
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - In this paper, we propose a covert communication scheme assisted by UAV-IRS to maximize the covert transmission rate. The ground transmitter, Alice, secretly delivers the private message to a legitimate receiver, Bob, via the UAV-IRS, wishing that the transmission will not be noticed by the warden, Willie. Willie is adversarial to Alice and the UAV-IRS, which makes his accurate location difficult to obtain. Given this fact, we first determine an optimal detection threshold and derive the error detection probability at Willie, which is the worst-case situation for the legitimate transmission. Then, we maximize the covert transmission rate by alternatively optimizing the transmit power of Alice, the IRS phase shift and the horizontal location of UAV-IRS subject to the covert requirements. Numerical results are presented to demonstrate the effectiveness of the proposed covert communication scheme assisted by UAV-IRS.
AB - In this paper, we propose a covert communication scheme assisted by UAV-IRS to maximize the covert transmission rate. The ground transmitter, Alice, secretly delivers the private message to a legitimate receiver, Bob, via the UAV-IRS, wishing that the transmission will not be noticed by the warden, Willie. Willie is adversarial to Alice and the UAV-IRS, which makes his accurate location difficult to obtain. Given this fact, we first determine an optimal detection threshold and derive the error detection probability at Willie, which is the worst-case situation for the legitimate transmission. Then, we maximize the covert transmission rate by alternatively optimizing the transmit power of Alice, the IRS phase shift and the horizontal location of UAV-IRS subject to the covert requirements. Numerical results are presented to demonstrate the effectiveness of the proposed covert communication scheme assisted by UAV-IRS.
KW - Covert communication
KW - intelligent reflecting surface
KW - location optimization
KW - power allocation
KW - unmanned aerial vehicle
UR - http://www.scopus.com/inward/record.url?scp=85149124963&partnerID=8YFLogxK
U2 - 10.1109/WCSP55476.2022.10039101
DO - 10.1109/WCSP55476.2022.10039101
M3 - Conference contribution
AN - SCOPUS:85149124963
T3 - 2022 IEEE 14th International Conference on Wireless Communications and Signal Processing, WCSP 2022
SP - 275
EP - 280
BT - 2022 IEEE 14th International Conference on Wireless Communications and Signal Processing, WCSP 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th IEEE International Conference on Wireless Communications and Signal Processing, WCSP 2022
Y2 - 1 November 2022 through 3 November 2022
ER -
