RoFSO system based on BCH and RS coded BPSK OFDM for 5G applications in smart cities

The radio over the free space optical (RoFSO) communication system has become a popular research topic in 5G recent years. Atmospheric turbulence typically degrades performance of RoFSO system. Multiple input multiple output, aperture averaging, error-correcting codes, and robust modulation are standard mitigation techniques used to reduce effects atmospheric turbulence. In this paper, Reed Solomon (RS) Bose-Chaudhuri-Hocquenghem (BCH) coded binary shift keying (BPSK) orthogonal frequency division multiplexing (OFDM) based is proposed for applications. We introduced RS BCH coding first time system, achieved an average bit error rate (ABER) $$10^{-6}$$ , at 40 dB, 17 4 dB carrier noise plus distortion ratio (CNDR) uncoded, coded, systems, respectively, under weak conditions. That is, when compared uncoded provide transmit power gains 13 34 respectively. ABER investigated various turbulence, weather, pointing cases. all regimes, weather conditions, scenarios, outperforms systems. energy efficient may be useful implementation.