Results 111 to 120 of about 619,506 (142)
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LDPC-based coded cooperative jamming codes
2012 IEEE Information Theory Workshop, 2012We present a practical coded cooperative jamming scheme for the problem of secure communications over the two-way wiretap channel. We design low-density parity-check (LDPC) based codes whose codewords interfere at the eavesdropper's terminal, thus providing secrecy.
Alexandre J. Pierrot, Matthieu R. Bloch
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Cooperative jamming for secrecy in decentralized wireless networks
2012 IEEE International Conference on Communications (ICC), 2012Cooperative jamming as a physical layer security enhancement has recently drawn considerable attention. While most existing works focus on communication systems with a small number of nodes, we investigate the use of cooperative jamming for providing secrecy in large-scale decentralized networks consisting of randomly distributed legitimate users and ...
Xiangyun Zhou 0001 +2 more
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Cooperative jamming for secure communications in MIMO Cooperative Cognitive Radio Networks
2015 IEEE International Conference on Communications (ICC), 2015Multiple-Input Multiple-Output Cooperative Cognitive Radio Networks (MIMO-CCRNs) have been proposed recently to further improve the spectrum efficiency. In MIMO-CCRNs, secondary users (SUs) equipped with multiple antennas can cooperatively relay the primary signals for the primary users (PUs) while concurrently accessing the same spectrum to send the ...
Zhen Li 0002 +5 more
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Testbed for Cooperative Jamming Cancellation in Physical Layer Security
IEEE Wireless Communications Letters, 2020Cooperative jamming (CJ) can effectively improve the security of wireless communication system in the physical layer, but such improvement is conditional on effective CJ cancellation at the authorized receiver. In this letter, by considering the point-to-point communication system, a CJ cancellation architecture is provided, and a testbed is designed ...
Wenbo Guo 0001, Hongzhi Zhao, Youxi Tang
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Cooperative jamming in downlink satellite network with hardware impairments
Transactions on Emerging Telecommunications Technologies, 2021AbstractIn this article, a land mobile satellite communication network with an external jammer to fight against the eavesdropper is investigated, where the hardware impairments are introduced to make the analyses more practical. It is worth noting that three jamming schemes, that is, the Gaussian noise jamming, the friendly jamming, and the scheme ...
Haowei Wu 0002 +4 more
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Safeguarding RSMA Networks With Cooperative Jamming and Relaying
IEEE Transactions on Vehicular TechnologyCooperative rate-splitting multiple access (C-RSMA) has emerged as a promising solution for increasing spectral efficiency over conventional RSMA. On the other hand, the presence of eavesdroppers seriously compromises secure communications due to the open nature of the wireless channel.
Haoran Pang +6 more
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Relay-Assisted Proactive Eavesdropping With Cooperative Jamming and Spoofing
IEEE Transactions on Wireless Communications, 2018In this paper, we consider a legitimate proactive eavesdropping scenario where a distant central monitor covertly wiretaps the communication between a pair of suspicious users via several multi-antenna full-duplex spoofing relays and a multi-antenna cooperative jammer.
Jihwan Moon 0001 +4 more
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Transmit beamforming and cooperative jamming for MIMOME wiretap channels
2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2011Joint transmit beamforming and cooperative jamming for MIMOME (multiple-input multiple-output multi-antenna-eavesdropper) wiretap channel is studied, where the model consists of a transmitter, a friendly jammer, a receiver and an eavesdropper. The optimization problem of finding transmit and jamming covariances to maximize the secrecy rate is non ...
Wei Shi, James A. Ritcey
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Increasing the information-theoretic secrecy by cooperative relaying and jamming
2012 50th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2012The use of cooperation to increase the information-theoretic secrecy in a decentralized ad-hoc wireless network is investigated. In particular, four cases of cooperative relaying are analyzed and compared. These cases include the no-cooperation case, the case with single-hop cooperation with multiple relays, the case with single-hop cooperation with ...
Ninoslav Marina +2 more
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Cooperative Jamming for Eavesdropping Surveillance in Wireless Networks
2022 International Conference on Networking and Network Applications (NaNA), 2022Sunyan Hong +6 more
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