Improving spectral efficiency of SAC-OCDMA systems by SPD scheme

Hamza M. R. Al-Khafaji, S. A. Aljunid, Angela Amphawan, Hilal A. Fadhil

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Keywords: SAC-OCDMA, single photodiode detection (SPD), spectral efficiency (SE), MAI, PIIN

JOURNAL FREE ACCESS

2012 Volume 9 Issue 24 Pages 1829-1834

DOI https://doi.org/10.1587/elex.9.1829

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Abstract

This letter presents a single photodiode detection (SPD) as an effective technique for eradicating both multiple-access interference (MAI) and phase-induced intensity noise (PIIN) in spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA) systems. Mathematical analysis and simulation experiments are used to investigate the spectral efficiency (SE) of SAC-OCDMA systems utilizing different detection techniques. Results show that the SPD technique significantly enhances the SE compared to AND as well as modified-AND subtraction detections.

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