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Performance analysis of MPPM FSO transmission over Gamma–Chi-square strong atmospheric turbulence

Todorovic Jelena, Spalevic Petar, Panic Stefan, Abdullah Majid Hamid, Pantelic Ivan

Optica Applicata

2023

Vol. 53, nr 1

111--126

In this paper, performance analysis of free space optical (FSO) system operating in conditions of strong atmospheric turbulence over Gamma–Chi-square turbulence model, has been carried out. We have observed reception over multi-pulse pulse-position (MPPM) modulation format for the case of strong atmospheric turbulence conditions modeled with Gamma–Chi-square turbulence model and have compared it with turbulence modeling distributions such are: Gamma–Gamma distribution, K-distribution, negative exponential distribution, log–normal distribution. First, we have provided closed-form analytical expressions for average bit error rate (ABER) at the reception for each observed case and then based on them, we have obtained numerical and Monte Carlo simulation results in order to observe turbulence level impact on system performance.

Average BER of SSC receiver over correlated Rayleigh fading channels in the presence of interference

Milosavljevic S., Anastasov J., Stefanovic M., Panic S.

Przegląd Elektrotechniczny

2012

R. 88, nr 2

262-265

In this paper switch-and stay combining (SSC) receivers over Rayleigh fading channels are observed. The case of interference-limited system in the environment with multiple co-channel interferers is considered. The proposed analysis gives the brand new expression for evaluating the probability density function (pdf) of signal-to–interference (SIR) at the output of combiner. Based on this, the average bit error probability (ABER) of the system, as one of the most important performance measure, is discussed.

W artykule przedstawiono wyniki obserwacji odbiornika SSC w kanale Rayleigha z zanikami. Rozważono system z ograniczonymi zakłóceniami i interferencją wielokanałową. Wyniki umożliwiają określenie funkcji gęstości prawdopodobieństwa i na ich podstawie określenia średniego błędu przypadkowego bitu.