Ferreira, R.C.; Facina, M.S.P.; de Figueiredo, F.A.P.; Fraidenraich, G.; de Lima, E.R. Secrecy Analysis and Error Probability of LIS-Aided Communication Systems under Nakagami-m Fading. Entropy2021, 23, 1284.
Ferreira, R.C.; Facina, M.S.P.; de Figueiredo, F.A.P.; Fraidenraich, G.; de Lima, E.R. Secrecy Analysis and Error Probability of LIS-Aided Communication Systems under Nakagami-m Fading. Entropy 2021, 23, 1284.
Ferreira, R.C.; Facina, M.S.P.; de Figueiredo, F.A.P.; Fraidenraich, G.; de Lima, E.R. Secrecy Analysis and Error Probability of LIS-Aided Communication Systems under Nakagami-m Fading. Entropy2021, 23, 1284.
Ferreira, R.C.; Facina, M.S.P.; de Figueiredo, F.A.P.; Fraidenraich, G.; de Lima, E.R. Secrecy Analysis and Error Probability of LIS-Aided Communication Systems under Nakagami-m Fading. Entropy 2021, 23, 1284.
Abstract
In this work, we derive the spectral efficiency, secrecy outage probability, and bit error rate of a communication system assisted by a large intelligent surface (LIS). We consider a single-antenna user and an array of antennas at the transmitter side and the possibility of a direct link between transmitter and receiver. Additionally, there is a single-antenna eavesdropper with a direct link to the transmitter, which is modeled as a Nakagami-m distributed fading coefficient. The channels from transmitter to the LIS and from the LIS to the user may or may not have the line-of-sight (LoS) and are modeled by the Nakagami- m distribution. Moreover, we assume that the LIS elements perform non-ideal phase cancellation leading to a residual phase error that assumes a Von Mises distribution. We show that the resulting channel can be accurately approximated by a Gamma distribution whose parameters are analytically estimated using the moments of the equivalent signal-to-noise ratio. We also provide an upper bound for the error probability for M-QAM modulations. With the derived formulas, we analyze the effect of the strength of the LoS link by varying the Nakagami parameter, m.
Keywords
Large intelligent surfaces; 6G; bit error probability; Nakagami fading; Von Mises distribution
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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