Results 1 to 10 of about 2,245 (194)

Ergodic secrecy rate and outage probability in NOMA IRS massive MIMO networks with jamming [PDF]

open access: yesScientific Reports
This research paper considers a wireless system that assumes massive multiple-input multiple-output (MIMO) technical solutions for the Base Station (BS), while both near and far users have just one antenna.
Min Zhu   +6 more
doaj   +3 more sources

Ergodic Secrecy Rate Analysis and Optimal Power Allocation for Symbiotic Radio Networks

open access: yesIEEE Access, 2023
In this paper, we address the challenge of establishing secure communication within a symbiotic radio (SR) network. This network comprises a primary transmitter (PT), a primary receiver (PR), a passive backscatter device (BD), and an eavesdropper (ED ...
Azzam Al-Nahari   +4 more
doaj   +4 more sources

On the Performance of Energy Harvesting Dual-Hop Free-Space Optical Communication Systems with Secrecy Analysis [PDF]

open access: yesSensors
In this study, we present a dual-hop decode-and-forward relaying-based free-space optical (FSO) communication system. We consider utilizing simultaneous lightwave information and power transfer (SLIPT) with a time-splitting technique at the relay, where ...
Abdulgani A. Ibrahim   +2 more
doaj   +2 more sources

Intelligent-Reflecting-Surface-Assisted Single-Input Single-Output Secure Transmission: A Joint Multiplicative Perturbation and Constructive Reflection Perspective [PDF]

open access: yesEntropy
Due to the inherent broadcasting nature and openness of wireless transmission channels, wireless communication systems are vulnerable to the eavesdropping of malicious attackers and usually encounter undesirable situations of information leakage.
Chaowen Liu   +5 more
doaj   +2 more sources

Physical Layer Security Design for FDD IM-OTFS Transmissions Based on Secure Mapping

open access: yesIEEE Access, 2023
In this paper, a physical layer security scheme is proposed for index modulation aided orthogonal time frequency space (IM-OTFS) modulation systems working in Frequency Division Duplex (FDD) mode.
Kejia Ma   +3 more
doaj   +1 more source

Ergodic Secrecy Rate of Optimal Source Selection in a Multi-Source System With Unreliable Backhaul [PDF]

open access: yesIEEE Wireless Communications Letters, 2021
The use of multiple source nodes with wireless backhaul is considered for secrecy enhancement through source node selection in future wireless networks. The ergodic secrecy rate (ESR) of {optimal source node selection in the presence of multiple eavesdroppers} over independent non-identically distributed (INID) Rayleigh fading channels is evaluated in ...
Chinmoy Kundu, Mark F. Flanagan
openaire   +2 more sources

Ergodic Secrecy Rate Analysis for LEO Satellite Downlink Networks

open access: yes, 2023
Satellite networks are recognized as an effective solution to ensure seamless connectivity worldwide, catering to a diverse range of applications. However, the broad coverage and broadcasting nature of satellite networks also expose them to security challenges. Despite these challenges, there is a lack of analytical understanding addressing the secrecy
Kim, Daeun, Lee, Namyoon
openaire   +2 more sources

Secure Massive MIMO Downlink With Low-Resolution ADCs/DACs in the Presence of Active Eavesdropping

open access: yesIEEE Access, 2020
In this paper we study the secrecy performance of a downlink massive multiple-input multiple-output (MIMO) system in the presence of pilot spoofing attack (PSA). Specifically, the base station (BS), which is equipped with low-resolution analog-to-digital
Qian Xu, Pinyi Ren
doaj   +1 more source

Optimal Power Allocation by Imperfect Hardware Analysis in Untrusted Relaying Networks [PDF]

open access: yes, 2017
By taking a variety of realistic hardware imperfections into consideration, we propose an optimal power allocation (OPA) strategy to maximize the instantaneous secrecy rate of a cooperative wireless network comprised of a source, a destination and an ...
Khandaker, Muhammad Ruhul Amin   +5 more
core   +5 more sources

Physical Layer Security Enhancement via IRS Based on PD-NOMA and Cooperative Jamming

open access: yesIEEE Access, 2023
Intelligence reconfigurable surfaces (IRS) have attracted attention due to their ability to create an intelligent and controllable wireless propagation environment for supporting an efficient, and secure design.
Afshin Souzani   +3 more
doaj   +1 more source

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