Results 251 to 260 of about 3,510,197 (304)

Joint Power Allocation and Trajectory Design for UAV-Enabled Covert Communication

IEEE Transactions on Wireless Communications
In this paper, we study covert communications in an unmanned aerial vehicle (UAV)-enabled network, where a UAV transmits information to multiple ground users (GUs) without being detected by a hidden detector.
Peng Wu, Xiaopeng Yuan, Yulin Hu, A. Schmeink   +3 more
semanticscholar   +1 more source

UAV-Enabled Robust Covert Communication Against Active Wardens

IEEE Transactions on Vehicular Technology
This correspondence investigates the robust unmanned aerial vehicle (UAV) enabled covert communication system with active ground wardens of collusive detection and location uncertainty.
Fangtao Yang, Chao Wang, Jun Xiong, Na Deng, Nan Zhao, Yonghui Li   +5 more
semanticscholar   +1 more source

Covert computer and network communications

Proceedings of the 4th annual conference on Information security curriculum development, 2007
The ex-filtration of confidential information across communication networks is a challenging problem. It is possible for transmissions to be hidden or masked in such a way to circumvent the security policies of an organization. An objective might be to make contacts "invisible" to all parties except designates.
openaire   +1 more source

Covert Communication in Large-Scale Multi-Tier LEO Satellite Networks

IEEE Transactions on Mobile Computing
We leverage covert communication to enhance the security of a large-scale multi-tier Low Earth Orbit (LEO) satellite network against vigilant adversarial terrestrial Base Stations (BSs) aiming at detecting satellite transmissions.
Shaohan Feng, Xiao Lu, Sumei Sun, Ekram Hossain, Guiyi Wei, Zhengwei Ni   +5 more
semanticscholar   +1 more source

Research on Underwater Bionic Covert Communication

2020
Due to the particularity of the underwater environment, underwater acoustic communication is an inevitable choice for underwater wireless sensor networks (UWSNs) communication. In recent years, with the development of underwater acoustic communication technology, the communication rate and communication quality of underwater wireless sensor networks ...
Jiaqi Shen, Kaiwei Lian, Qiuling Yang
openaire   +1 more source

Joint Coverless Steganography and Image Transformation for Covert Communication of Secret Messages

IEEE Transactions on Network Science and Engineering
With the rapid development of internet applications, privacy protection of secret messages in covert communication has become increasingly important.
Wenying Wen, Haigang Huang, Shuren Qi, Yushu Zhang, Yuming Fang   +4 more
semanticscholar   +1 more source

Relay-Assisted Uplink Covert Communication in the Presence of Multi-Antenna Warden and Uninformed Jamming

IEEE Transactions on Communications
Covert wireless communication intends to prevent hostile surveillance but is threatened by the powerful multi-antenna detection technique. In this paper, we investigate finite blocklength covert communication assisted by a multi-antenna relay station and
Menghan Lin, Chao Liu, Wenjie Wang
semanticscholar   +1 more source

Covert Communication in a Multirelay-Assisted Wireless Network With an Active Warden

IEEE Internet of Things Journal
Wireless connectivity in smart cities relies on widely deployed Internet of Things (IoT) systems. However, the broadcast and open nature of wireless channels in such systems also raise serious security concerns. Covert communication technology presents a
Qiuxia Zhao, Chan Gao, Dong Zheng, Yafei Li, Xiaokun Zheng   +4 more
semanticscholar   +1 more source

UAV-Relayed Finite-Blocklength Covert Communication With Channel Estimation

IEEE Transactions on Vehicular Technology
Unmanned aerial vehicle (UAV) mounted relays can provide effective solutions to extend the coverage of covert communications. Nevertheless, ignoring the covertness during channel estimation may lead to the failure of air-ground covert transmission.
Linhang Jiao, Xinying Chen, Lexi Xu, Na Deng, Nan Zhao, Xianbin Wang   +5 more
semanticscholar   +1 more source

Covert Communications in a Dynamic Interference Environment

2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2018
Much of security research focuses on preventing an adversary from deciphering a message's content, but there are a number of applications that motivate the more challenging goal of “covert” communications: transmitter Alice conveying information to legitimate receiver Bob while preventing a capable and attentive adversary Willie from detecting the ...
Dennis Goeckel, Azadeh Sheikholeslami, Tamara V. Sobers, Boulat A. Bash, Don Towsley, Saikat Guha 0001   +5 more
openaire   +1 more source