Journal
ENTROPY
Volume 23, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/e23101284
Keywords
large intelligent surfaces; 6G; bit error and secrecy outage probability; Nakagami fading; Von Mises distribution
Categories
Funding
- RNP
- MCTIC [01245.010604/2020-14]
- Radiocommunication Reference Center (Centro de Referencia em RadiocomunicacoesCRR)
- National Institute of Telecommunications (Instituto Nacional de TelecomunicacoesInatel), Brazil
- RD ANEEL-PROJECT [COPEL 2866-0366/2013]
- EMBRAPII-Empresa Brasileira de Pesquisa e Inovacao Industrial
- CNPq [301777/2019-5, 313239/2017-7]
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This paper proposes metrics to analyze the performance of systems with multiple antennas aided by LIS in an environment with Nakagami-m distributed fading. It assumes non-ideal phase cancellation by LIS and shows that the resulting channel can be accurately approximated by a Gamma distributed SNR. The effect of the strength of the line-of-sight link can be evaluated by varying the Nakagami parameter, m.
Large intelligent surfaces (LIS) are a new trend to achieve higher spectral efficiency and signal-to-noise ratio in mobile communications. For this reason, this paper proposes metrics to analyze the performance of systems with multiple antennas aided by LIS and derive the spectral efficiency, secrecy outage probability, and bit error probability in an environment with Nakagami-m distributed fading. In addition to an eavesdropper, there is a single-antenna user, an array of antennas at the transmitter side and the possibility of a direct link between transmitter and receiver. This study assumes that the LIS performs non-ideal phase cancellation leading to a residual phase error that follows a Von Mises distribution, and shows that the resulting channel can be accurately approximated by a Gamma distributed SNR whose parameters are analytically derived. From these formulas, it is possible to evaluate the effect of the strength of the line-of-sight link by varying the Nakagami parameter, m.
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