Suppression Of Four Wave Mixing Impairment In Hybrid Optical Code Division Multiple Access And Dense Wavelength Division Multiplexing System

Improving the performance and capacity of optical networks is an on-going research goal. Two technologies which have been the subject of much research are dense wavelength-division multiplexing (DWDM) and optical code-division multiple access (OCDMA). Although the OCDMA system features distinct adv...

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Main Author: Alsowaidi, Naif Ahmed Ali
Format: Thesis
Published: 2019
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spelling my-mmu-ep.77572020-09-22T17:50:32Z Suppression Of Four Wave Mixing Impairment In Hybrid Optical Code Division Multiple Access And Dense Wavelength Division Multiplexing System 2019-05 Alsowaidi, Naif Ahmed Ali TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television Improving the performance and capacity of optical networks is an on-going research goal. Two technologies which have been the subject of much research are dense wavelength-division multiplexing (DWDM) and optical code-division multiple access (OCDMA). Although the OCDMA system features distinct advantages over the DWDM system, each system suffers from significant limitations. Of the most serious of these limitations for DWDM is inter and intra-channel four-wave mixing (FWM), while OCDMA suffers from multiple access interference (MAI) and intersymbol interference (ISI). We propose and analyse the effectiveness of an optical hybrid system, which combines the OCDMA and the DWDM technologies, to increase system capacity, and in conjunction with an electro optic phase modulator (EOPM), simultaneously overcome the most serious limitation of the DWDM system. With this hybrid system, each wavelength/channel has the ability to carry N number of OCDMA users; hence, the capacity of the system is multiplied by a factor of N. The system is examined using both theoretical and simulation analysis with and without EOPM at different transmitted powers and different transmission distances based on the RZ-OOK modulation format. 2019-05 Thesis http://shdl.mmu.edu.my/7757/ http://library.mmu.edu.my/library2/diglib/mmuetd/ phd doctoral Multimedia University Faculty of Engineering & Technology
institution Multimedia University
collection MMU Institutional Repository
topic TK5101-6720 Telecommunication
Including telegraphy, telephone, radio, radar, television
spellingShingle TK5101-6720 Telecommunication
Including telegraphy, telephone, radio, radar, television
Alsowaidi, Naif Ahmed Ali
Suppression Of Four Wave Mixing Impairment In Hybrid Optical Code Division Multiple Access And Dense Wavelength Division Multiplexing System
description Improving the performance and capacity of optical networks is an on-going research goal. Two technologies which have been the subject of much research are dense wavelength-division multiplexing (DWDM) and optical code-division multiple access (OCDMA). Although the OCDMA system features distinct advantages over the DWDM system, each system suffers from significant limitations. Of the most serious of these limitations for DWDM is inter and intra-channel four-wave mixing (FWM), while OCDMA suffers from multiple access interference (MAI) and intersymbol interference (ISI). We propose and analyse the effectiveness of an optical hybrid system, which combines the OCDMA and the DWDM technologies, to increase system capacity, and in conjunction with an electro optic phase modulator (EOPM), simultaneously overcome the most serious limitation of the DWDM system. With this hybrid system, each wavelength/channel has the ability to carry N number of OCDMA users; hence, the capacity of the system is multiplied by a factor of N. The system is examined using both theoretical and simulation analysis with and without EOPM at different transmitted powers and different transmission distances based on the RZ-OOK modulation format.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Alsowaidi, Naif Ahmed Ali
author_facet Alsowaidi, Naif Ahmed Ali
author_sort Alsowaidi, Naif Ahmed Ali
title Suppression Of Four Wave Mixing Impairment In Hybrid Optical Code Division Multiple Access And Dense Wavelength Division Multiplexing System
title_short Suppression Of Four Wave Mixing Impairment In Hybrid Optical Code Division Multiple Access And Dense Wavelength Division Multiplexing System
title_full Suppression Of Four Wave Mixing Impairment In Hybrid Optical Code Division Multiple Access And Dense Wavelength Division Multiplexing System
title_fullStr Suppression Of Four Wave Mixing Impairment In Hybrid Optical Code Division Multiple Access And Dense Wavelength Division Multiplexing System
title_full_unstemmed Suppression Of Four Wave Mixing Impairment In Hybrid Optical Code Division Multiple Access And Dense Wavelength Division Multiplexing System
title_sort suppression of four wave mixing impairment in hybrid optical code division multiple access and dense wavelength division multiplexing system
granting_institution Multimedia University
granting_department Faculty of Engineering & Technology
publishDate 2019
_version_ 1747829675274534912