Experimental analysis of a triple-hop relay-assisted FSO system with turbulence

Norhanis Aida Mohd Nor*, Zabih Ghassemlooy, Stanislav Zvanovec, Mohammad Ali Khalighi, Manav R. Bhatnagar, Jan Bohata, Matej Komanec

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


This paper outlines experimental investigation of the performance of the wireless optical network based on an all-optical triple-hop free space optical (FSO) communications employing amplify-and-forward relaying under the influence of atmospheric turbulence. We present new results for the bit error rate (BER) performance for seven possible turbulence network scenarios for relay-assisted FSO link and validate them with numerical simulations based on Gamma-Gamma turbulence model showing a good agreement between them. We also show results, which elucidate the impact of non-homogeneous turbulence along the entire transmission link span for the multiple-hop relay-assisted FSO system. More specifically we show that the BER performance considerably deteriorates for the case where turbulence is near to the receiver end. We outline that for a target BER of 10−4 the signal-to-noise ratio penalty can be as high as 9 dB compared to the case with no turbulence.

Original languageEnglish
Pages (from-to)194-198
Number of pages5
JournalOptical Switching and Networking
Early online date9 Nov 2017
Publication statusPublished - 1 Jul 2019


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