Rosdisham Endut
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Preferred name
Rosdisham Endut
Official Name
Rosdisham, Endut
Alternative Name
Endut, Rosdisham
Endut, R.
Main Affiliation
Scopus Author ID
57189347166
Researcher ID
ABC-3290-2020

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  • Publication
    Performance analysis of coherent source SAC OCDMA in free space optical communication systems
    ( 2023)
    Ahmed M. Alhassan
    ;
    Eithar Issam
    ;
    Syed Alwee Aljunid Syed Junid
    ;
    Mohd Rashidi Che Beson
    ;
    Syed Mohammad Ammar
    ;
    Norshamsuri Ali @ Hasim
    ;
    Rosdisham Endut
    In this paper, we investigate the performance of spectral amplitude coding optical code division multiple access (SAC OCDMA) systems under the effect of beat noise and turbulence. Three different multi-laser source configurations are considered in this analysis: shared multi-laser, separate multi-laser, and carefully controlled center frequency separate multi-laser. We demonstrate through Monte Carlo simulation that the gamma–gamma probability density function (pdf) cannot adequately approximate the measured intensity of overlapping lasers and that an empirical pdf is required. Results also show it is possible to achieve error-free transmission at a symmetrical data rate of 10 Gbps for all active users when only beat noise is taken into account by precisely controlling the center frequencies. However, only 30% of the active users can be supported when both beat noise and turbulence are considered.