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Covert Communication With Relay Selection [PDF]

IEEE Wireless Communications Letters, 2021
In this letter, we investigate covert communication in relay networks with relay selection. We consider the scenario that while forwarding the source’s message, the selected relay opportunistically transmits its own message to the destination covertly. We derive the probability of detection error (PDE) and the average covert rate (ACR) in a closed form,
Yinjie Su, , Zhuxian Lian
exaly   +3 more sources

Covert Communication with Cognitive Jammer Embedded in Public Communication System [PDF]

Sensors
In this work, we investigate covert communication with a cognitive jammer (CJ) embedded in a public communication system. Specifically, while the transmitter continuously transmits public messages to the receiver, it may also transmit its covert messages
Xiangyu Zhao, Yinjie Su, Zhuxian Lian, Yajun Wang, Zhibin Xie   +4 more
doaj   +2 more sources

Optimization of Covert Communication in Multi-Sensor Asymmetric Noise Systems [PDF]

Sensors
This work investigates wireless covert communication in a multi-sensor asymmetric noise scenario. We adopt KL (Kullback–Leibler) divergence as the covertness constraint metric and mutual information as the transmission rate metric.
Sen Qiao, Ruizhi Zhu, Xiaopeng Ji, Junjie Zhao, Huihui Ding   +4 more
doaj   +2 more sources

Deep Reinforcement Learning-Enabled Trajectory and Bandwidth Allocation Optimization for UAV-Assisted Integrated Sensing and Covert Communication

Drones
The growing interest in integrated sensing and communication (ISAC) has accelerated the development of unmanned aerial vehicles (UAVs) and drones for secure data transmission.
Donghao Li, Binfang Du, Zhiquan Bai
doaj   +2 more sources

The Long-Range Biomimetic Covert Communication Method Mimicking Large Whale [PDF]

Sensors, 2022
Jongmin An
exaly   +2 more sources

Blockchain covert communication scheme based on the cover of normal transactions

网络与信息安全学报, 2022
With the development of computer technology, the situation of modern network attack and defense is becoming increasingly severe, and the problem of secure transmission of secret information needs to be solved urgently.Covert communication technology ...
Pengkun JIANG, Wenyin ZHANG, Jiuru WANG, Shanyun HUANG, Wanshui SONG   +1 more
doaj   +3 more sources

Wireless Covert Communication with Polarization Dirty Constellation

Applied Sciences, 2023
Wireless covert communication is an emerging communication technique that prevents eavesdroppers. This paper presents a novel approach to wireless covert communication based on polar codes with dirty constellation polarization.
Mingyu Hu, Sen Qiao, Xiaopeng Ji
doaj   +1 more source

A Multi-Dimensional Covert Transaction Recognition Scheme for Blockchain

Mathematics, 2023
Covert communication was widely studied in recent years in terms of keeping the communication of entities on the Internet secret from the point of view of information security. Due to the anonymity of accounts and the publicness of the ledger, blockchain
Zijian Zhang, Shuqi Wang, Zhen Li, Feng Gao, Huaqiang Wang   +4 more
doaj   +1 more source

Covert Communication With Mismatched Decoders

IEEE Transactions on Information Theory, 2022
This paper considers the problem of covert communication with mismatched decoding, in which a sender wishes to reliably communicate with a receiver whose decoder is fixed and possibly sub-optimal, and simultaneously to ensure that the communication is covert with respect to a warden.
Qiaosheng Eric Zhang, Vincent Y. F. Tan
openaire   +2 more sources

Multi‐antenna joint covert communication with a public communication link over wireless fading channel

IET Communications, 2021
This paper studies multi‐antenna covert communication exploiting a public communication link over the wireless fading channel. In particular, a relatively practical covert communication scenario is considered for the first time, where a warden with ...
Yuda Lin, Liang Jin, Kaizhi Huang, You Zhou   +3 more
doaj   +1 more source