eesti teaduste
akadeemia kirjastus
SINCE 1952
Proceeding cover
of the estonian academy of sciences
ISSN 1736-7530 (Electronic)
ISSN 1736-6046 (Print)
Impact Factor (2021): 1.024
Performance analysis of WSN–FSO system modeled by Gamma–Chi-square channel distribution; pp. 30–40

Jelena Todorović, Branimir Jakšić, Petar Spalević, Miloš Dobrojević, Ivan Milovanović

This paper presents the WSN–FSO (wireless sensor network–free-space optics) system based on CCR (corner cube retroreflector) and modeled with Gamma–Chi-square distribution. The expressions of ABER (average bit error rate) for the received signal under conditions of different levels of atmospheric turbulence are calculated. Numerical results are presented in the form of graphs, and the results are confirmed by the Monte Carlo simulation. Graphs are presented for different Rician factor values, link lengths, and different levels of atmospheric turbulence. The obtained results are compared with the existing results for other FSO channel distribution models. After thorough consideration we conclude that Gamma–Chi-square gives a better system performance in terms of ABER.


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