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ThinkMind // ICSNC 2020, The Fifteenth International Conference on Systems and Networks Communications // View article icsnc_2020_2_80_28008
Exploiting Multi-Path for Safeguarding mmWave Communications Against Randomly Located Eavesdroppers
 Authors: Rohith Talwar Nancy Amala J George Medina Akshadeep Singh Jida Mohammed E. Eltayeb Keywords: Millimeter-Wave; Physical layer security; Beamforming. Abstract: Communication in the millimeter-wave (mmWave) band has recently been proposed to enable giga-bit-per-second data rates for next generation wireless systems. Physical layer security techniques have emerged as a simple and yet effective way to safeguard these systems against eavesdropping attacks. These techniques make use of the large antenna arrays available in mmWave systems to provide an array gain at the target receiver and degrade the signal quality at the eavesdropper. Despite their effectiveness, the majority of these techniques are based on line-of-sight communication links between the transmitter and the receiver, and may fail in the presence of blockages or non-lineof- sight links. This paper builds upon previous work and extends physical layer security to the non-line-of-sight communication case and randomly located eavesdroppers. Specifically, the large dimensional antenna arrays in mmWave systems and the intrinsic characteristics of wireless channel are exploited to induce noiselike signals that jam eavesdroppers with sensitive receivers. Numerical results show that the proposed techniques provide higher secrecy rate when compared to conventional array and physical layer techniques based on line-of-sight links. Pages: 49 to 55 Copyright: Copyright (c) IARIA, 2020 Publication date: October 18, 2020 Published in: conference ISSN: 2163-9027 ISBN: 978-1-61208-828-0 Location: Portugal, Porto Dates: from October 18, 2020 to October 22, 2020
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