Experimental study of the beam wander mitigation in free space optical communications using single input multiple output system

Ijaz, M.; Harris, G.; Adebisi, B.; Popoola, W. and Rajbhandari, S. (2017). Experimental study of the beam wander mitigation in free space optical communications using single input multiple output system. In: 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 8-13 Oct . 2017.

DOI: https://doi.org/10.1109/PIMRC.2017.8292601

Abstract

This paper experimentally investigates the use of a single input multiple output (SIMO) free space optical (FSO) communication system in an indoor laboratory controlled turbulence chamber. Two receiver circuits are used with a single laser input. The current outputs of two receivers were combined using equal gain combining (EGC) scheme and compared with single input single output (SISO) FSO system. A weak turbulence was generated within the atmospheric chamber and link performances are measured using ß-factor and bit error rate (BER) for On-Off Keying (OOK) modulation scheme. The results demonstrated that the simplest form of SIMO can improve the performance of the FSO communication channel under weak turbulent condition.

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