TY - GEN
T1 - Directional Modulation Retrodirective Array-Enabled Physical Layer Secured Transponder for Protected Wireless Data Acquisition
AU - Vosoughitabar, Shaghayegh
AU - Nooraiepour, Alireza
AU - Bajwa, Waheed U.
AU - Mandayam, Narayan B.
AU - Wu, Chung Tse Michael
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - A time-modulated retrodirective array (RDA) is proposed to achieve directional modulation (DM) for physical layer (PHY) security in wireless communication. The designed and fabricated RDA is based on the phase conjugation technique, in which the retransmitted signal is time-modulated by using pin diodes as RF switches. By feeding proper periodic sequences to the pin diodes-based switches, the resulting harmonic signals can be suppressed in the desired secure angle, while their levels rise and distort the retransmitted signal in other unwanted angles, thereby enabling PHY security. Measured bit-error-rate (BER) results by injecting an orthogonal frequency-division multiplexing (OFDM) signal to the LO port of the PHY secured RDA verify better security performance in comparison with a conventional RDA without time modulation.
AB - A time-modulated retrodirective array (RDA) is proposed to achieve directional modulation (DM) for physical layer (PHY) security in wireless communication. The designed and fabricated RDA is based on the phase conjugation technique, in which the retransmitted signal is time-modulated by using pin diodes as RF switches. By feeding proper periodic sequences to the pin diodes-based switches, the resulting harmonic signals can be suppressed in the desired secure angle, while their levels rise and distort the retransmitted signal in other unwanted angles, thereby enabling PHY security. Measured bit-error-rate (BER) results by injecting an orthogonal frequency-division multiplexing (OFDM) signal to the LO port of the PHY secured RDA verify better security performance in comparison with a conventional RDA without time modulation.
KW - directional modulation (DM)
KW - physical-layer security (PHY)
KW - retrodirective array
KW - time modulation
KW - transponder
UR - http://www.scopus.com/inward/record.url?scp=85168543684&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85168543684&partnerID=8YFLogxK
U2 - 10.1109/IMS37964.2023.10188157
DO - 10.1109/IMS37964.2023.10188157
M3 - Conference contribution
AN - SCOPUS:85168543684
T3 - IEEE MTT-S International Microwave Symposium Digest
SP - 1180
EP - 1183
BT - 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE/MTT-S International Microwave Symposium, IMS 2023
Y2 - 11 June 2023 through 16 June 2023
ER -