Abstract
Free space optical or simply FSO communication is a novel and efficient method of wireless data transmission. However, high atmospheric attenuation in turbulent weather conditions is an area of major concern. In this paper, manchester coding format has been introduced in Differential Phase Shift Keying with an object of increasing efficiency (DPSK). DPSK is an advanced modulation method which gives much better result when compared to On–off-Keying (OOK) formats. Manchester coding provides self-synchronization which helps to reduce average BER and increase the Quality Factor (Q-Factor). A Multi-beam Dense Wavelength Division Multiplexed (DWDM) model providing a bit rate of 320 Gbps has been proposed. Non Return to zero (NRZ) sequencing is applied in OOK and one of the DPSK models. Graphs and eye diagram comparisons have been made between NRZ-OOK, NRZ-DPSK and Manchester Coded DPSK formats considering various weather conditions. Power efficiency, transmission distance, Q-Factor and BER are taken as investigating parameters.
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Bharti, M., Chattopadhyay, D. Simulative analysis of manchester coded DPSK FSO in diverse weather conditions. Int. j. inf. tecnol. 13, 2237–2243 (2021). https://doi.org/10.1007/s41870-021-00781-0
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DOI: https://doi.org/10.1007/s41870-021-00781-0