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العنوان
Optical code division multiple access (OCDMA)in optical communication systems /
المؤلف
Ismail, Ismail Ali Abd El Aziz.
هيئة الاعداد
باحث / اسماعيل على عبد العزيز
مشرف / محمد محمد زهرة
مناقش / محمد يس على يس
مناقش / أحمد نبيه زكى راشد
الموضوع
Optical fiber communication.
تاريخ النشر
2013.
عدد الصفحات
200 p. ;
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الهندسة الكهربائية والالكترونية
تاريخ الإجازة
1/1/2013
مكان الإجازة
جامعة بنها - كلية الهندسة ببنها - Electrical engineering
الفهرس
Only 14 pages are availabe for public view

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from 112

Abstract

The present thesis conclude the model which has been investigated to predict the optical code division multiple access communication systems behavior in high speed single mode and multimode optical fiber communication systems for different haul distance transmission such as indoor, short distance, long distance .
It is theoretically found that the dramatic effects of temperature variations and operating signal wavelength on average repeater spacing. As well as transmitted signal power and total number of subscribers or users on the system have dramatic effects on the OCDMA communication systems performance. The system performance prediction is estimated for indoor, short, and long haul transmission applications.
The model has been investigated to measure optical code division multiple access performance signature over multi mode optical fiber transmission communication systems for different systems transmission applications. Average throughput per user, signal to noise ratio, bit error rates, average repeater spacing are the major interesting design parameters in the systems. It is theoretically found that the dramatic effects of temperature variations and operating signal wavelength on average repeater spacing. As well as transmitted signal power and total number of subscribers or users on the system have dramatic effects on the OCDMA communication systems performance. The system performance prediction over multi mode optical fiber transmission system is estimated for indoor, short, and long haul transmission applications.
The model has been investigated the transmission analysis of optical code division multiple access (OCDMA) communication systems in the presence of noise in local area network applications. It is theoretically found that the increased code length, this results in the increased number of users at constant code weight at w = 5 to get maximum signal to noise ratio and minimum bit error rates. Thermal and shot noise have the dramatic effects on the OCDMA communication systems. The suitable choice of code length and code weight have the great effects on the maximum and minimum system cost planning and received signal power at different transmission distances for both plastic and pure silica fibers based OCDMA communication systems.