Dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping
Dynamic optical code division multiple access (DOCDMA) communication system is proposed. In a DOCDMA system, the central wavelength of electrically controlled tunable optical filter (TOF) at the transmitter is dynamically varied during the bit period according to a functional code. An enhancement...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Published: |
IEEE (IEEE Xplore)
2005
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| Online Access: | http://psasir.upm.edu.my/id/eprint/40967/ |
| _version_ | 1848849570568601600 |
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| author | Hamarsheh, Mohammad M. Naji Abdullah, Mohamad Khazani Mahdi, Mohd Adzir Khatun, Sabira Shalaby, Hossam M. H. |
| author_facet | Hamarsheh, Mohammad M. Naji Abdullah, Mohamad Khazani Mahdi, Mohd Adzir Khatun, Sabira Shalaby, Hossam M. H. |
| author_sort | Hamarsheh, Mohammad M. Naji |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Dynamic optical code division multiple access
(DOCDMA) communication system is proposed. In a DOCDMA
system, the central wavelength of electrically controlled tunable optical filter (TOF) at the transmitter is dynamically varied during the bit period according to a functional code. An enhancement of the system is also proposed by clipping the signal at the decoder of each receiver. The system is modeled and analyzed with and without signal clipping taking into account the
multiple access interference, thermal noise, and phase induced intensity noise. The performance of the enhanced system is compared with that of a DOCDMA system without signal clipping, fast frequency hopping, and with a spectral amplitude coding system that uses either a Hadamard code, a modified quadratic congruence code, or modified frequency hopping code. The results show that the proposed system improve the bit error rate performance. Signal clipping method reduces the multiple access interference and improve the bit error rate performance
of the system. |
| first_indexed | 2025-11-15T09:52:30Z |
| format | Conference or Workshop Item |
| id | upm-40967 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T09:52:30Z |
| publishDate | 2005 |
| publisher | IEEE (IEEE Xplore) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-409672016-01-26T04:12:27Z http://psasir.upm.edu.my/id/eprint/40967/ Dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping Hamarsheh, Mohammad M. Naji Abdullah, Mohamad Khazani Mahdi, Mohd Adzir Khatun, Sabira Shalaby, Hossam M. H. Dynamic optical code division multiple access (DOCDMA) communication system is proposed. In a DOCDMA system, the central wavelength of electrically controlled tunable optical filter (TOF) at the transmitter is dynamically varied during the bit period according to a functional code. An enhancement of the system is also proposed by clipping the signal at the decoder of each receiver. The system is modeled and analyzed with and without signal clipping taking into account the multiple access interference, thermal noise, and phase induced intensity noise. The performance of the enhanced system is compared with that of a DOCDMA system without signal clipping, fast frequency hopping, and with a spectral amplitude coding system that uses either a Hadamard code, a modified quadratic congruence code, or modified frequency hopping code. The results show that the proposed system improve the bit error rate performance. Signal clipping method reduces the multiple access interference and improve the bit error rate performance of the system. IEEE (IEEE Xplore) 2005 Conference or Workshop Item PeerReviewed Hamarsheh, Mohammad M. Naji and Abdullah, Mohamad Khazani and Mahdi, Mohd Adzir and Khatun, Sabira and Shalaby, Hossam M. H. (2005) Dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping. In: 1st International Conference on Computers, Communication & Signal Processing with Special Track on Biomedical Engineering (CCSP 2005), 14-16 Nov. 2005 , Kuala Lumpur, Malaysia. (pp. 125-129). 10.1109/CCSP.2005.4977173 |
| spellingShingle | Hamarsheh, Mohammad M. Naji Abdullah, Mohamad Khazani Mahdi, Mohd Adzir Khatun, Sabira Shalaby, Hossam M. H. Dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping |
| title | Dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping |
| title_full | Dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping |
| title_fullStr | Dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping |
| title_full_unstemmed | Dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping |
| title_short | Dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping |
| title_sort | dynamic optical code division multiple access communication system analysis and performance enhancement by signal clipping |
| url | http://psasir.upm.edu.my/id/eprint/40967/ http://psasir.upm.edu.my/id/eprint/40967/ |