Results 21 to 30 of about 5,210,021 (184)

Power allocation‐Assisted secrecy analysis for NOMA enabled cooperative network under multiple eavesdroppers

open access: yesETRI Journal, 2021
In this work, the secrecy of a typical wireless cooperative dual‐hop non‐orthogonal multiple access (NOMA)‐enabled decode‐and‐forward (DF) relay network is investigated with the impact of collaborative and non‐collaborative eavesdropping.
V. Narasimha Nayak, Kiran Kumar Gurrala
doaj   +1 more source

On the Ergodic Secrecy Capacity with Full Duplex Communication [PDF]

open access: yes, 2017
Full duplex communication promises performance gains in terms of the throughput and the delay. Generally, it has been shown that the throughput and delay gains of full duplex communication are somewhat limited in realistic network settings, leading ...
Mahmood, Nurul Huda   +7 more
core   +1 more source

Secure downlink transmission with finite resolution analog beamforming in massive multiple-input multiple-output system

open access: yesInternational Journal of Distributed Sensor Networks, 2018
To reduce the number of radio-frequency chains of base station, the use of finite resolution analog beamforming is desirbale in massive multiple-input multiple-output system.
Xianyu Zhang   +3 more
doaj   +1 more source

Secure performance analysis and pilot spoofing attack detection in cell-free massive MIMO systems with finite-resolution ADCs

open access: yesInternational Journal of Distributed Sensor Networks, 2022
In this article, the secure communication in cell-free massive multiple-input multiple-output system with low-resolution analog-to-digital converters is investigated in the presence of an active eavesdropper.
Xianyu Zhang   +3 more
doaj   +1 more source

On the ergodic secrecy capacity and secrecy outage probability of the MIMOME Rayleigh wiretap channel

open access: yes, 2020
In this paper, we study the multiple-input multiple-output multiple-eavesdropper wiretap channel in the nonergodic and ergodic scenarios, both with stationary Rayleigh distributed fading channels.
Souza, Richard Demo   +2 more
core   +2 more sources

Ergodic Secrecy Rate of Optimal Source-Destination Pair Selection in Frequency-Selective Fading

open access: yesIEEE Transactions on Vehicular Technology, 2023
Node selection is a simple technique to achieve diversity and thereby enhance the physical layer security in future wireless communication systems which require low complexity. High-speed data transmission often encounters frequency selective fading. In this context, we evaluate the exact closed-form expression for the ergodic secrecy rate (ESR) of the
Shashi Bhushan Kotwal   +4 more
openaire   +3 more sources

A physical layer security scheme for full-duplex communication systems with residual self-interference and non-eavesdropping CSI

open access: yesDigital Communications and Networks, 2021
We discuss the physical layer security scheme in the Full-Duplex (FD) MIMO point-to-point two-way communication system with residual self-interference, in which legitimate nodes send confidential information and null space Artificial Noise (AN) while ...
Weijia Lei, Yang Zhou, Xiuzhen Lin
doaj   +1 more source

Secure Cooperative Single Carrier Systems Under Unreliable Backhaul and Dense Networks Impact

open access: yesIEEE Access, 2017
In this paper, the impacts of unreliable backhaul links on the secrecy performance of cooperative single carrier heterogeneous networks in the presence of eavesdroppers are investigated.
Huy T. Nguyen   +4 more
doaj   +1 more source

Secure Energy Harvesting Relay Networks With Unreliable Backhaul Connections

open access: yesIEEE Access, 2018
Wireless backhaul is a cost-effective and flexible alternative to wired backhaul, yet it suffers from unreliability. This paper studies the secrecy performance of a relay network with such unreliable wireless backhaul.
Cheng Yin   +5 more
doaj   +1 more source

Transmitter selection for secrecy against colluding eavesdroppers with backhaul uncertainty

open access: yesIET Communications, 2023
Due to the exponential growth of interconnected devices and reduced cell coverage, beyond fifth‐generation networks will be dense. Thus, instead of wired backhaul, wireless backhaul will be cost‐effective and flexible.
Burhan Wafai, Ankit Dubey, Chinmoy Kundu
doaj   +1 more source

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