BER analysis of coherent FSO systems with SC receive diversity over correlated turbulence channels

Yulong Fu; Xin Li; Jing Ma; Hui Wang

doi:10.1117/12.2622534

27 March 2022 BER analysis of coherent FSO systems with SC receive diversity over correlated turbulence channels

Yulong Fu, Xin Li, Jing Ma, Hui Wang

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 1216925 (2022) https://doi.org/10.1117/12.2622534
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

In this letter, we study the average bit-error-rate (BER) performance of coherent free space optical communication systems with selection combining (SC) receive diversity over correlated Gamma-Gamma channels under non-Kolmogorov turbulence. Novel and computationally efficient analytical expressions over correlated and independent Gamma-Gamma channels of the average BER are derived. Then using these analytical expressions, we analyze the effects of the spectral power law and the channel correlation coefficient on the average BER performance. The correctness of the analytical results is verified by Monte Carlo simulation. This work will help with the further investigation of the fading correlation in the spatial diversity systems.

Citation Download Citation

Yulong Fu, Xin Li, Jing Ma, and Hui Wang "BER analysis of coherent FSO systems with SC receive diversity over correlated turbulence channels", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 1216925 (27 March 2022); https://doi.org/10.1117/12.2622534

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KEYWORDS

Turbulence

Signal to noise ratio

Free space optics

Receivers

Telecommunications

Monte Carlo methods

Free space optical communications

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