Results 21 to 30 of about 1,176,752 (196)

3D Beamforming for Security of UAV Communications [PDF]

open access: yesHangkong bingqi, 2021
To enhance the security of unmanned aerial vehicle (UAV) communication system with delayed channel state information (CSI), two physical layer security schemes based on 3D beamforming are propsed, namely destination-specific (DS) scheme and eavesdropper ...
Wang Changlong,Yuan Quansheng,Hu Yongjiang
doaj   +1 more source

Physical layer security of reconfigurable intelligent surface empowered wireless network with cooperative jammer [PDF]

open access: yes, 2022
This paper evaluates the physical layer security performance of a reconfigurable intelligent surface (RIS) enabled wireless network in the presence of a passive eavesdropper.
Olakanmi Oladayo Olufemi   +5 more
core   +1 more source

Secrecy outage probability analysis for RIS‐assisted NOMA systems [PDF]

open access: yesElectronics Letters, 2020
In this Letter, the physical layer security for a novel reconfigurable intelligent surface (RIS)‐assisted non‐orthogonal multiple access (NOMA) system in a multi‐user scenario is investigated, where the authors consider the worst case that the eavesdropper also utilises the advantage of the RISs.
Liang Yang, Yongjie Yuan
openaire   +2 more sources

On secrecy outage probability for downlink NOMA systems with relay–antenna selection [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
AbstractSecure transmission is essential for future non-orthogonal multiple access (NOMA) system. This paper investigates relay–antenna selection to enhance physical-layer security of cooperative NOMA system in the presence of an eavesdropper, where multiple antennas are deployed at the relays, the users, and the eavesdropper.
Shu Xu 0005   +4 more
openaire   +2 more sources

Performance analysis of physical layer security based on channel correlation

open access: yesTongxin xuebao, 2021
In view of the correlation of the main and eavesdropper’s channels in physical layer security, the impact of channel correlation on the secrecy performance was studied, the exact form ulations of ergodic secrecy capacity and secrecy outage probability ...
Xuanli WU   +3 more
doaj   +2 more sources

Secrecy performance of two‐way integrated satellite terrestrial relay networks with multiple users

open access: yesElectronics Letters, 2022
This letter studies the secrecy performance for a two‐way integrated satellite terrestrial relay networks. Particularly, multiple legitimate users along with maximal user scheduling scheme are applied in the considered networks.
Dongmei Yang   +4 more
doaj   +1 more source

Virtual full-duplex buffer-aided relay selection schemes for secure cooperative wireless networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2022
This paper considers secure communication in buffer-aided cooperative wireless networks in the presence of one eavesdropper, which can intercept the data transmission from both the source and relay nodes.
Jiayu Zhou, Deli Qiao, Haifeng Qian
doaj   +1 more source

Probability of Secrecy Outage in Cognitive Radio Networks over Rician-Fading Channels [PDF]

open access: yes, 2016
In Rician-fading scenario, cognitive radio networks (CRNs) with a source (S) in a secondary system transmitting its confidential information to a legitimate destination (D) in the presence of an eavesdropper, are considered in this paper. Under CRNs, the
Pan, Gaofeng
core   +4 more sources

Secrecy Performance Analysis of Two-Way Relay Non-Orthogonal Multiple Access Systems

open access: yesIEEE Access, 2020
This paper studies physical layer security for two-way relay non-orthogonal multiple access systems. Specifically, by employing a decode-and-forward relay and considering both the maximum-ratio combining and selection combining schemes at the ...
Mahendra K. Shukla   +2 more
doaj   +1 more source

Performance of Multihop Wireless Links over Generalized-K Fading Channels [PDF]

open access: yes, 2010
The performance of multihop links is studied in this contribution by both analysis and simulations, when communicating over Generalized-K (KG ) fading channels. The performance metrics considered include symbol error rate (SER), outage probability, level
Zhangdui Zhong   +5 more
core   +2 more sources

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