scholarly journals Recent advances on physical layer security for wireless communications

2018 ◽  
Author(s):  
Galagarza Martinez
2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Edith Annette Cabrera-Hernández ◽  
Josep Parron ◽  
Alan Tennant

Dynamic directional modulation (DDM) has already proven to be an efficient technique to achieve physical layer security in wireless communications. System architectures based on vector modulators provide a flexible framework to implement synthesis methods that allow us to obtain increased security and/or independent multichannel transmissions. However, the implementation of DDM with vector modulators requires an accurate calibration (amplitude and phase) of every component in the RF path. In this contribution, we study the sensitivity of the response of a DDM system based on commercial vector modulators showing how to correct the nonideal behavior of all the components thanks to the flexibility provided by the vector modulator.


IEEE Access ◽  
2016 ◽  
Vol 4 ◽  
pp. 4464-4477 ◽  
Author(s):  
Junqing Zhang ◽  
Roger Woods ◽  
Trung Q. Duong ◽  
Alan Marshall ◽  
Yuan Ding ◽  
...  

2016 ◽  
Vol 109 ◽  
pp. 1-3 ◽  
Author(s):  
Gerhard Hancke ◽  
Aikaterini Mitrokotsa ◽  
Reihaneh Safavi-Naini ◽  
Damien Sauveron

2020 ◽  
Vol 2 (2) ◽  
pp. 18-24
Author(s):  
Shaddrack Yaw Nusenu

Configuration of antenna array system to offer directional dependent modulation has the capability of enhancing the security level of data transmission against eavesdroppers’ attacks. In this paper, Frequency diverse array (FDA) antenna for physical–layer security in wireless communications has been proposed. The proposed method provide a range and angle dependent directional modulation scheme using FDA with frequency increments to improve physical-layer security point-to-point communications. It maintains the objective of changing the progressive phase shifts at each symbol transmission. Thus the emitted pattern at each symbol transmission period will be range and angle dependent. Consequently, the proposed method offers a robust physical-layer security for wireless transmission, as the transmitted signal will be deliberately distorted along the undesired positions, but can be successfully decoded by the intended receiver position. Numerical results are presented to validate the effectiveness of the proposed method. Keywords: Frequency diverse array; Physical-layer security; Directional antenna modulation; Wireless communication; Range and angle dependent.


2015 ◽  
Vol 8 (7) ◽  
pp. 981-993 ◽  
Author(s):  
Yuan Ding ◽  
Vincent Fusco

Directional modulation (DM) is an emerging technology for securing wireless communications at the physical layer. This promising technology, unlike the conventional key-based cryptographic methods and the key-based physical layer security approaches, locks information signals without any requirements of keys. The locked information can only be fully recovered by the legitimate receiver(s) priory known by DM transmitters. This paper reviews the origin of the DM concept and, particularly, its development in recent years, including its mathematical model, assessment metrics, synthesis approaches, physical realizations, and finally its potential aspects for future studies.


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