scholarly journals Physical Layer Security Issues in Massive MIMO and GNSS

2021 ◽  
Author(s):  
Ziya Gülgün
Keyword(s):  
Physical Layer Security ◽  
Massive Mimo ◽  
Physical Layer ◽  
Security Issues

scholarly journals Physical Layer Protection Against Sensor Eavesdropper Channels in Wireless Sensor Networks

2021 ◽  
Vol 3 (2) ◽  
pp. 59-67
Author(s):  
Abul Bashar ◽  
Smys S
Keyword(s):  
Physical Layer Security ◽  
Physical Layer ◽  
Network Size ◽  
Cumulative Distribution ◽  
Wireless Sensor ◽  
Security Framework ◽  
Analytical Methodology ◽  
Security Issues ◽  
Analytical Expressions ◽  
Wsn Security

This paper presents an analysis of Wireless Sensor Network (WSN) security issues that take place due to eavesdropping. The sensor-eavesdropper channels and the sensor sinks are exposed to generalized K-fading. Based on the physical layer security framework we use cumulative distribution, optimal sensors and round robin scheduling scheme to decrease the probability of interception and to equip secure connection between the nodes. For identifying the interception probability, a novel analytical methodology is present with simple analytical expressions. Moreover, diversity orders of scheduling schemes and asymptotic closed-form expressions are evaluated. Numerical results show the crucial result of shadowing and fading parameters of wiretap and main links, selected schemes on WSN security and network size. We have analyzed the output using Monte Carlo simulation and conclusions show the validation of the proposed work.

scholarly journals On the Physical Layer Security Characteristics for MIMO-SVD Techniques for SC-FDE Schemes

Sensors ◽  
2019 ◽  
Vol 19 (21) ◽  
pp. 4757 ◽  
Author(s):  
João Madeira ◽  
João Guerreiro ◽  
Rui Dinis ◽  
Paulo Montezuma ◽  
Luís Miguel Campos
Keyword(s):  
Physical Layer Security ◽  
Communication Systems ◽  
Physical Layer ◽  
Wireless Communication Systems ◽  
Secure Communications ◽  
Secrecy Rate ◽  
Security Issues ◽  
Single Carrier ◽  
Efficient Option ◽  
Value Decomposition

Multi-Input, Multi-Output (MIMO) techniques are seeing widespread usage in wireless communication systems due to their large capacity gains. On the other hand, security is a concern of any wireless system, which can make schemes that implement physical layer security key in assuring secure communications. In this paper, we study the physical layer security issues of MIMO with Singular Value Decomposition (SVD) schemes, employed along with Single-Carrier with Frequency-Domain Equalization (SC-FDE) techniques. More concretely. the security potential against an unintended eavesdropper is analysed, and it is shown that the higher the distance between the eavesdropper and the transmitter or receiver, the higher the secrecy rate. In addition, in a scenario where there is Line of Sight (LOS) between all users, it is shown that the secrecy rate can be even higher than in the previous scenario. Therefore, MIMO-SVD schemes combined with SC-FDE can be an efficient option for highly secure MIMO communications.

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