TY - JOUR
T1 - Covert wireless communication in presence of a multi-antenna adversary and delay constraints
AU - Shahzad, Khurram
AU - Zhou, Xiangyun
AU - Yan, Shihao
PY - 2019/12
Y1 - 2019/12
N2 - Covert communication hides the transmission of a message from a watchful adversary, while ensuring reliable information decoding at the receiver, providing enhanced security in wireless communications. In this work, covert communication in the presence of a multi-antenna adversary and under delay constraints is considered. Under the assumption of quasi-static wireless fading channels, we analyze the effect of increasing the number of antennas employed at the adversary on the achievable throughput of covert communication. It is shown that in contrast to a single-antenna adversary, a slight increase in the number of adversary's antennas drastically reduces the covert throughput, even for relaxed covertness requirements.
AB - Covert communication hides the transmission of a message from a watchful adversary, while ensuring reliable information decoding at the receiver, providing enhanced security in wireless communications. In this work, covert communication in the presence of a multi-antenna adversary and under delay constraints is considered. Under the assumption of quasi-static wireless fading channels, we analyze the effect of increasing the number of antennas employed at the adversary on the achievable throughput of covert communication. It is shown that in contrast to a single-antenna adversary, a slight increase in the number of adversary's antennas drastically reduces the covert throughput, even for relaxed covertness requirements.
UR - http://www.scopus.com/inward/record.url?scp=85077215771&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/arc/DP180104062
U2 - 10.1109/TVT.2019.2948608
DO - 10.1109/TVT.2019.2948608
M3 - Article
AN - SCOPUS:85077215771
VL - 68
SP - 12432
EP - 12436
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
SN - 0018-9545
IS - 12
ER -