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Enhancing physical layer security in MIMO systems through beamforming and artificial noise techniques

Author(s)
Farah Nizam Computer System Engineering Department, Dawood University of Engineering and Technology Karachi, Pakistan
Saleem Ahmed Computer System Engineering Department, Dawood University of Engineering and Technology Karachi, Pakistan
Pardeep Kuma Software Engineering Department Quaid-e-Awam University of Engineering, Science & Technology Nawabshah, Pakistan
Anthony Tsetse School of Computing & Analytics, Northern Kentucky University, Kentucky 41099, USA
Ramesh Kumar Computer System Engineering Department, Dawood University of Engineering and Technology Karachi, Pakistan
Bhawani Shanker Department of Computer Science, Riphah international University Islamabad, Pakistan
Najamuddin Sohu Government College University (GCU) Hyderabad, Pakistan
Abstract
Physical layer security (PLS) has grown in popularity as it guarantees secure and reliable communication between wireless devices without restricting the ability of data analysts to eavesdrop. PLS benefits from the randomization property of the wireless channel, which improves immunity and protects against many dangers of information breach from eavesdroppers. MIMO and Massive MIMO, which use numerous antennas at the transmitter and receiver ends, are fundamental technologies for improving efficiency in 5G and future network systems. The PLS still require significant amount of work before it can be employed in practical systems. The interception of eavesdropper can be made difficult by adding artificial noise. This paper focuses on the physical layer security considering maximal ratio combining, and artificial noise with beamforming techniques to further enhance the secrecy rate. The proposed work demonstrates that the use of transmitter beamforming with artificial noise can significantly improve the degree of confidentiality of information being transmitted between a transmitter and an intended receiver while making it more difficult for eavesdroppers to intercept. The simulation results in terms of bit error rate shows that proposed method has significant impact on error rate performance of the eavesdropper.
Publication Details
Page(s) 20-24
DOI 10.31645/JISRC.23.21.2.4
Published Journal: Journal of Independent Studies and Research Computing, Volume: 21, Issue: 2, Year: 2023

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Keywords
MIMO, Physical Layer Security, Artificial Noise, Maximal Ratio Combining., Beamforming
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