Deployment of multiservice code in FSO-based hybrid subcarrier system
This research aims to investigate and improve multi-user free space optic systems (FSO) based on a hybrid subcarrier multiplexing spectral amplitude coding-optical code division multiple access (SCM-SAC-OCDMA) technique using MS code with a direct decoding technique. The performance is observed unde...
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| Format: | Article |
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Walter de Gruyter GmbH
2022
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| author | Alnassar, Ghusoon Mohammed, Husam Abduldaem Taiwo, Ambali Ahmad Anas, Siti Barirah Mokhtar, Makhfudzah |
| author_facet | Alnassar, Ghusoon Mohammed, Husam Abduldaem Taiwo, Ambali Ahmad Anas, Siti Barirah Mokhtar, Makhfudzah |
| author_sort | Alnassar, Ghusoon |
| collection | UPM |
| description | This research aims to investigate and improve multi-user free space optic systems (FSO) based on a hybrid subcarrier multiplexing spectral amplitude coding-optical code division multiple access (SCM-SAC-OCDMA) technique using MS code with a direct decoding technique. The performance is observed under different weather conditions including clear, rain, and haze conditions. The investigation includes analyzing the proposed system mathematically using MATLAB and OptiSystem software. The simulation is carried out using a laser diode. Furthermore, the performances of the MS code in terms of angles of bit rate, beam divergence and noise are evaluated based on bit error rate (BER), received power, and transmission distance. The performance of the MS code-based system was subsequently compared with Khazani Syed code (KS), multi-diagonal (MD), and modified quadratic congruence code (MQC) codes under different weather conditions at a bit rate of 1 Gb/s and BER threshold of 10−9. Heavy rain indicates the worst performance in terms of transmission distance of 0.9 km. Nevertheless, the system designed using the MS code outperformed the KS, MD and MQC systems as it is capable of supporting up to 6.3, 0.8, 0.9, and 1.5 km, respectively, under clear weather. In conclusion, this study provides a means of improving FSO communications that suits tropical and Malaysia weather conditions. |
| first_indexed | 2024-03-06T11:14:06Z |
| format | Article |
| id | upm.eprints-100894 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T11:14:06Z |
| publishDate | 2022 |
| publisher | Walter de Gruyter GmbH |
| record_format | dspace |
| spelling | upm.eprints-1008942023-07-26T03:14:42Z http://psasir.upm.edu.my/id/eprint/100894/ Deployment of multiservice code in FSO-based hybrid subcarrier system Alnassar, Ghusoon Mohammed, Husam Abduldaem Taiwo, Ambali Ahmad Anas, Siti Barirah Mokhtar, Makhfudzah This research aims to investigate and improve multi-user free space optic systems (FSO) based on a hybrid subcarrier multiplexing spectral amplitude coding-optical code division multiple access (SCM-SAC-OCDMA) technique using MS code with a direct decoding technique. The performance is observed under different weather conditions including clear, rain, and haze conditions. The investigation includes analyzing the proposed system mathematically using MATLAB and OptiSystem software. The simulation is carried out using a laser diode. Furthermore, the performances of the MS code in terms of angles of bit rate, beam divergence and noise are evaluated based on bit error rate (BER), received power, and transmission distance. The performance of the MS code-based system was subsequently compared with Khazani Syed code (KS), multi-diagonal (MD), and modified quadratic congruence code (MQC) codes under different weather conditions at a bit rate of 1 Gb/s and BER threshold of 10−9. Heavy rain indicates the worst performance in terms of transmission distance of 0.9 km. Nevertheless, the system designed using the MS code outperformed the KS, MD and MQC systems as it is capable of supporting up to 6.3, 0.8, 0.9, and 1.5 km, respectively, under clear weather. In conclusion, this study provides a means of improving FSO communications that suits tropical and Malaysia weather conditions. Walter de Gruyter GmbH 2022-12-14 Article PeerReviewed Alnassar, Ghusoon and Mohammed, Husam Abduldaem and Taiwo, Ambali and Ahmad Anas, Siti Barirah and Mokhtar, Makhfudzah (2022) Deployment of multiservice code in FSO-based hybrid subcarrier system. Journal of Optical Communications. pp. 1-4. ISSN 2191-6322 https://www.degruyter.com/document/doi/10.1515/joc-2022-0240/html?lang=en 10.1515/joc-2022-0240 |
| spellingShingle | Alnassar, Ghusoon Mohammed, Husam Abduldaem Taiwo, Ambali Ahmad Anas, Siti Barirah Mokhtar, Makhfudzah Deployment of multiservice code in FSO-based hybrid subcarrier system |
| title | Deployment of multiservice code in FSO-based hybrid subcarrier system |
| title_full | Deployment of multiservice code in FSO-based hybrid subcarrier system |
| title_fullStr | Deployment of multiservice code in FSO-based hybrid subcarrier system |
| title_full_unstemmed | Deployment of multiservice code in FSO-based hybrid subcarrier system |
| title_short | Deployment of multiservice code in FSO-based hybrid subcarrier system |
| title_sort | deployment of multiservice code in fso based hybrid subcarrier system |
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