Performance improvement of MIMO FSO systems against destructive interference

A contemporary survey on free space optical communication: Potentials, technical challenges, recent advances and research direction

“…Thereafter, radio over FSO (RoFSO) technology is presented in 5G and other communications perspectives [381]. The comprehensive study of MIMO FSO spatial diversity is studied in [402]- [411] targeting to achieve robust system performance. In light of existing research works, we focused the prospect of the future generation FSO networks incorporating machine learning, deep neural networks, efficient routing algorithms, QoS controlling methods.…”

“…Ref [410] investigated satisfactory BER, power penalty reduction, and outage probability performance for 10 Gb/s QPSK FSO links using aperture averaging receive diversity and MIMO spatial technique. Eghbal and Abouei [411] studied received signal intensity of MIMO FSO systems accounting destructive interference with small variations of path length between optical transmitter and photodetector. A disaster management method for MIMO-OFDM FSO links employing polarization division multiplexing (PDM) with Malaga channel model is presented in [412].…”

Experimental real-time GbE MIMO FSO under fog conditions with software defined GNU Radio platform-based adaptive switching

“…A comparative study of single input single output (SISO) and MIMO FSO systems under different weather conditions has been reported in the literature, showing that MIMO outperforms SISO in terms of the received power level and BER in [9][10][11]. Aside from MIMO and SD techniques, adaptive modulation and low-density parity-check coding for the SISO FSO system were proposed in [12], showing tolerance to a deep fade of the order of 30 dB and above under strong turbulence.…”