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OCDMA over WDM system using DPSK modulation technique for gigabit passive optical network

Master of Science in Communication Engineering

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Bibliographic Details
Main Author: S. M. Monirul, Islam
Other Authors: Nasim, Ahmed, Dr.
Format: Thesis
Language:English
Published: School of Computer and Communication Engineering 2016
Subjects:
Passive optical networks
Optical fiber communication
Optical communication
Computer networks
Communication > Computer networks
Optical Code Division Multiple Access (OCDMA)
Coordinate Systems
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72605
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spelling my.unimap-726052022-11-24T06:47:03Z OCDMA over WDM system using DPSK modulation technique for gigabit passive optical network S. M. Monirul, Islam Nasim, Ahmed, Dr. Passive optical networks Optical fiber communication Optical communication Computer networks Communication -- Computer networks Optical Code Division Multiple Access (OCDMA) Coordinate Systems Master of Science in Communication Engineering Optical code division multiple access (OCDMA) system has provides immense opportunity for all optical access networks regarding the flexibility, asynchronous access, high-volume transmission capacity, simple network control and increasing the security. This thesis deploys OCDMA technology to design a new hybrid (OCDMA over WDM) system and comparing the performance in different detection techniques with different data rates. To design a new OCDMA over WDM system, code selection is a concerning part for getting better system performance with high security. In this thesis, detection techniques used Modified Double Weight Code (MDW) as signature code. In OCDMA systems, generally the cross-correlation functions created that causes multiple access inference noise. Multiple Access Interference (MAI) is type of interference caused by multiple cellular users who are using the same frequency allocation at the same time. To mitigate this MAI issue, detection technique is used throughout the thesis. Advanced modulation technique is applied to increase the system performance with high bit-error-rates (≤10-10). The investigated results obtained by using direct detection, AND subtraction detection and complementary subtraction detection techniques for similar number of active users. Detection properties of short noise, thermal noise and phase-induced intensity noise are considered simultaneously for performance analysis. System simulation performance are carried out some design parameters such as bit-error-rate, distance, input power, received power, channel spacing. To compare the simulation results we have to integrate commercial optical simulator “Optisystem” version 12. 2016 2021-10-22T03:15:06Z 2021-10-22T03:15:06Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72605 en Universiti Malaysia Perlis (UniMAP) School of Computer and Communication Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Passive optical networks
Optical fiber communication
Optical communication
Computer networks
Communication -- Computer networks
Optical Code Division Multiple Access (OCDMA)
Coordinate Systems
spellingShingle Passive optical networks
Optical fiber communication
Optical communication
Computer networks
Communication -- Computer networks
Optical Code Division Multiple Access (OCDMA)
Coordinate Systems
S. M. Monirul, Islam
OCDMA over WDM system using DPSK modulation technique for gigabit passive optical network
description Master of Science in Communication Engineering
author2 Nasim, Ahmed, Dr.
author_facet Nasim, Ahmed, Dr.
S. M. Monirul, Islam
format Thesis
author S. M. Monirul, Islam
author_sort S. M. Monirul, Islam
title OCDMA over WDM system using DPSK modulation technique for gigabit passive optical network
title_short OCDMA over WDM system using DPSK modulation technique for gigabit passive optical network
title_full OCDMA over WDM system using DPSK modulation technique for gigabit passive optical network
title_fullStr OCDMA over WDM system using DPSK modulation technique for gigabit passive optical network
title_full_unstemmed OCDMA over WDM system using DPSK modulation technique for gigabit passive optical network
title_sort ocdma over wdm system using dpsk modulation technique for gigabit passive optical network
publisher School of Computer and Communication Engineering
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72605
_version_ 1753972981107785728
score 13.222552

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