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تعزيز اداء اتصالات الراديو عبر الليف احادي ومتعدد الطول الموجي بواسطة تقنية التضمين == Performance Enhancements of Single And Multi - Wavelength Radio Links Over Fiber By Modulation Technique

Author name: مصطفى عبد الهادي جليل
Supervisor name: عايد خلف محمد
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
Key words:
  • Radio - over - Fiber (RoF)
  • Quadrature Phase Shift Keying (QPSK)
  • Quadrature Amplitude Modulation (QAM)
  • Orthogonal Frequency Division Multiplexing (OFDM)
  • Digital Signal Processing (DSP) Unit
First pages:
Abstract: تم تطوير تكنولوجيا الراديو عبر الالياف منذ اواخر القرن العشرين، وتم استخدامها في مجموعة من التطبيقات لانظمة الاتصالات ويعتبر الراديو عبر الالياف هو الجيل المقبل من انظمة الاتصالات لما يمتاز به من العديد من المزايا مقارنة مع النظام التقليدي مع توهين منخفض | Radio - over - Fiber (RoF) technology has been developed since the late 20th century and has been used efficiently in a range of applications for communication systems. Radio over fiber system is the next generation of communication systems because it has many advantages compared with conventional system with low attenuation, enormous bandwidth of optical fiber, and extension of existing coverage and capacity. RoF system refers to the radio signals which are modulated with optical signal and transmitted over optical fiber link from Central Office (CO) to the Remote Nodes (RNs).In this work, several RoF systems have been designed and simulated with different modulation techniques using commercial software package called “Optisystem v.12”. Furthermore, these systems were compared with each other to check for better performance. These systems are presented as follows : The first system is RoF with Quadrature Phase Shift Keying (QPSK), 16 - Quadrature Amplitude Modulation (16 - QAM), and 64 - QAM schemes with and without OFDM technique. The simulation results of this system show that the Signal to Noise Ratio (SNR) for 64 - QAM - OFDM higher than SNR for QPSK, 4 - QAM and 16 - QAM with OFDM at 10 - 9 symbol error, after 50 km of SMF length without any amplification or compensation techniques. In addition, also SNR for 64 - QAM - OFDM higher than SNR for other techniques in this work after 160 km of fiber length.The second system is the RoF with QPSK and 16 - QAM schemes with Digital Signal Processing (DSP) unit in the receiver side. The simulation results of this system show that the Error Vector Magnitude (EVM) for QPSK scheme with DSP unit is 14.5% and 85.5% without DSP unit after 50 km of fiber length. Furthermore, the EVM for 16 - QAM with DSP unit is 7.5%, but the EVM for the same system without DSP unit is 91%. In addition, the EVM for QPSK with DSP equal to 11.5%, but the EVM for 16 - QAM with DSP equal to 9% after 160 km of fiber length.The third system is RoF system with two multiplexing techniques, 8×10 Gbps WDM - RoF system and 4×5 Gbps SCM - RoF system, have been simulated with 4 - QAM - OFDM, 16 - QAM - OFDM and 64 - QAM - OFDM schemes. The fourth system was to combine the techniques of wavelength division multiplexing (WDM) and subcarrier multiplexing (SCM) to increase the capacity of the system by 20×8 Gbps data rate. The simulation results show that the SCM - WDM - RoF with 64 - QAM gives high SNR compared with SCM - WDM - RoF system with other modulation schemes which have been used in this work.

تصميم ومحاكات منظومة استخدام الويب للمراقبة عن بعد في منظومات شركة مصافي الشمال في بيجي == Design And Simulation Of A Web-Based Monitoring System For The North Oil Refinery In Baiji

Author name: مسارع كريم محمود
Supervisor name: فوزي منير النعمة
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Doctorate
University: Al-Nahrain University - College Of Engineering
Language: English
University location: Baghdad
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تصميم ومحاكاة مصفوفة كانتور للهوائيات الخطية == Design And Simulation Of Cantor Linear Antenna Array

Author name: فواز جنان جبرائيل
Supervisor name: رفعت طالب حسين
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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التحقق من تقنيات المعادل التكيفي لمنظومة مزج تقسيم التردد المتعامد == Investigation Of Adaptive Equalizer Techniques For OFDM System

Author name: علي نجدي عبد الله
Supervisor name: ثامر محمد جميل
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
First pages:

Analysis, Design And Simulation Of Combined Fractal Dipole Antennas

Author name: مصطفى خالد طاهر
Supervisor name: Rifaat Talib Hussein
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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تنفيذ المرمز وفاتح الترميز لنظام الترميز المرن الهجين المتراص الملتف باستخدام مصفوفة البوابات المنطقية المبرمجة == FPGA Implementation Of Flexible Hybrid Concatenated Convolutional Codec

Author name: رغد زهير يوسف المقدسي
Supervisor name: وليد امين الجوهر | معتز شناسي عبد الوهاب
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Doctorate
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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المستلم النفاث التكراري في الاتصالات المتنقلة == Iterative Turbo Receiver For Mobile Radio Communication

Author name: مهند اسماعيل الفراس
Supervisor name: صديق يوسف امين
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Doctorate
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
First pages:

اعادة تركيب المقاطع المفقودة في حيز المويجة في صورة == Wavelet - Domain Reconstruction Of Lost Blocks In Image

Author name: احمد حسن هادي
Supervisor name: وليد امين محمود | معتز شناسي عبد الوهاب
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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ربط متعدد المدخلات متعدد المخرجات مع ترميز الشبكة في الشبكات اللاسلكية == Combined Multi - Input Multi - Output And Network Coding For Wireless Networks

Author name: الزا عبد الجبار محمود
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: Al-Nahrain University - College of Information Engineering
Language: English
University location: Baghdad
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تصميم ومحاكاة نظام تتبع الترداد باستخدام تقنية معالج الاشارة الرقمية == Design And Simulation Of A Frequency Tracking System Using DSP Techniques

Author name: بشار جبار حمزة
Supervisor name: علي عباس علي
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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تحليل وتنفيذ بث الفيديو المباشر متعدد الارسال IEEE 802.11n باستخدام الشبكة اللاسلكية لنظام == Analysis And Implementation Of Multicast Video Streaming Over IEEE802.11n WLAN

Author name: استبرق حازم عبد الواحد مكية
Supervisor name: عماد الحميري
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: Al-Nahrain University - College of Information Engineering
Language: English
University location: Baghdad
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تحسين جودة الفديو عبر الشبكات المتنقلة المخصصة == Improving Video Quality Over Ad - Hoc Networks

Author name: غيداء مطشر عبد الصاحب
Supervisor name: Abdulkareem Abdulrahman Kadhim | Anas Ali Hussien
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: Al-Nahrain University - College of Information Engineering
Language: English
University location: Baghdad
First pages:

استرجاع المقاطع المفقودة عند النقل اللاسلكي للصور باستخدام مجال المويجة == Wavelet Domain Reconstruction Of Lost Blocks In Wireless Image Transmission

Author name: اثير علاء صبري
Supervisor name: وليد امين محمود | معتز شناسي عبد الوهاب
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Doctorate
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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ضغط الصورة باستعمال الدمج بين تحويل المويجة والتشكيل النبضي التفاضلي المرمز == Hybird DPCM / WT For Image Compression

Author name: وسن كاظم سعد
Supervisor name: سعيد عبيد عبد الامير
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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دراسة وتحليل الخصائص الفيزيائية وتقنيات الوصول في المنظومات اللاسلكية متعددة المستخدمين == Analysis Of Physical Layer Characteristics And Multiple Access Techniques In Multiuser Wireless Networks

Author name: منصور عابد
Supervisor name: وليد امين الجوهر
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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مسيطر على سرعة محرك تيار مستمر باستخدام مصفوفة البوابة للمجال المبرمج (FPGA) == DC Motor Speed Controller Employing FPGA

Author name: قاسم كرم عبد الله الربيعي
Supervisor name: زياد محمد احمد
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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مراقب لمعالجة معاملات لنظام التجارة الالكترونية == Transaction Processing Monitor For A E - Commerce System

Author name: مينا محسن وائل
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: Al-Nahrain University - College of Information Engineering
Language: English
University location: Baghdad
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نظام التصويت الموحد باستخدام المعرفة الصفرية والتشفير المتماثل == Combined Zero Knowledge Proof And Homomorphic Encryption Voting

Author name: ندى مهدي كيطان
Supervisor name: Mahmood Khalil Ibraham
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: Al-Nahrain University - College of Information Engineering
Language: English
University location: Baghdad
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نظام معلومات طبي مقدم للاطباء الاخصائيين والمقيمين الاقدميين == Medical Information System For Seniors And Residents Physicians

Author name: رباب عبد الرسول كاظم
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: Al-Nahrain University - College of Information Engineering
Language: English
University location: Baghdad
First pages:

اكتساب الشفرة في انظمة الطيف المنتشر بالسلسلة المباشرة == Code Acquisition Of Direct Sequence Spread Spectroum System

Author name: توفيق زهير توفيق
Supervisor name: حسين كامل جايل
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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دراسة اداء ومحاكاة للتضمين الترميزي التشعيري وانتشار الترميز الزمني الازاحي == Performance Study And Simulation Of TCM And Distributed Space Time Coding

Author name: وفاء محمد رضا شاكر
Supervisor name: وليد امين محمود
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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تحسين منظومة مزج تقسيمات التردد المتعامد-الطيف المنتشر باستخدام الترميز المناسب == Enhancement Of DWT - OFDM - CDMA System Using Turbo Coding

Author name: وائل عبد الحسن هادي
Supervisor name: صديق يوسف امين
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Doctorate
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
First pages:

تطوير ارسال فديو متعدد الطبقات باستخدام OFDM == Development Of Scalable Video Transmission Using Orthogonal Frequency Division Multiplexing

Author name: وليد خالد عبد الوهاب
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: Al-Nahrain University - College of Information Engineering
Language: English
University location: Baghdad
First pages:

الانتشار واسع الحزمة للمسافات الطويلة بوساطة التقسيم المتعدد للطول الموجي == Ultra Wideband Long Distance WDM Transmission

Author name: ليث عودة كاظم
Supervisor name: علي يوسف فتاح
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Doctorate
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
First pages:

تخميـن الحركـة لضغط الصـورة التلفـزيـونيـة مع تقـنيـة الاقتران == Motion Estimation For TV Picture Compression With Mapping Technique

Author name: فائز فواز شريف
Supervisor name: سعيد عبيد
General topic: Electrical, Electronic and Communications Engineering
Specific topic: Communications Engineering
Degree: Master
University: University of Technology - Electrical Engineering Department - Electronic Engineering Branch
Language: English
University location: Baghdad
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