• Peak Hour Mobile Core Network Data Traffic Analysis to Improve Network Quality Using Flow Based Method: The Case of Ethio-Telecom 

  Mahlet, Merid (Addis Ababa University, 2021-10)

  It is known that the telecom industry is one of the core areas in a country's sustainability and growth. So it is important that great emphasis be given to it on deploying necessary infrastructures in different areas, ...
• Performance Analysis of Spectral Efficiency for 5G Enhanced Mobile Broadband Network with Massive MIMO 

  Kahsay, Nguse (Addis Ababa University, 2022-01)

  Due to the increase of the number of users and applications, the improvement of technology is also ongoing. Wireless mobile communications need high data rate and capacity at the same time. Future generation wireless ...
• Performance Evaluation of Precoding Techniques for 5G Massive MIMO Downlink System 

  Beza Shewanega (Addis Ababa University, 2021-06)

  Massive multiple-input-multiple-output (MIMO) systems use a few hundred antennas to simultaneously serve many wireless broadband terminals, using sophisticated coding at the transmitter and substantial signal processing ...
• Feasibility Study on Aircraft Location Accuracy Using Multilateration System in the Case of Addis Ababa Bole international Airport 

  Kibreab, Kibebew (Addis Ababa University, 2021-12)

  The aviation sector must be safe. Information errors which are provided from ground aids Communication, Navigation and Surveillance (CNS) systems can put the aircraft at risk. Therefore, all ground-based flight aids should ...
• Entropy Estimation and Entropy Based Encoding of Written Afaan Oromo for its Efficient Digital Transmission and Storage 

  Kalkidan, Dejene (Addis Ababa University, 2021-02)

  According to Ethiopian population census, Oromo Language is estimated to be spoken by 36.4% of the local population. Furthermore, in addition to the local population the language is spoken outside of Ethiopia, for instance ...
• Ultrasonic Sensor Probe to Detect Early Signs of Lumbar Disk Herniation 

  Hanna, Merid (Addis Ababa University, 2017)

  Medical imaging has advanced in remarkable ways since the discovery of X-rays 120 years ago. Today's radiologists can image the human body in intricate detail using computed tomography, magnetic resonance imaging, positron ...
• Comparative Performance Analysis of Free Space Optics as a Backup Link for Fiber Connectivity around the Areas of Bole Medhanialem Using Optisystem 15 

  Melat, Ambaye (Addis Ababa University, 2021-05)

  Free space optics (FSO) is a field of curiosity and importance for the scientists because of its numerous applications and advantages like low cost, easy deployment, high data rate, secure links and license free bands. FSO ...
• Radio Spectrum Sensing Comparative Analysis for Multiple Primary User Transmitter Detection 

  Ngist, Fentie (Addis Ababa University, 2021-07)

  A radio spectrum is a particular range of frequencies used to communicate information in a wireless communication system. It is naturally available and scarce resource. Besides to, the dramatically increase of the wireless ...
• Performance Analysis of Printed Array Antennas for 5G Mobile Communications 

  Muzey, Tsigab (Addis Ababa University, 2021-10)

  Nowadays with the limited spectrum bands the mobile operators have been challenged to deliver multimedia applications with higher data rates, low latency and better quality of service of mobile communications to a growing ...
• Analysis of Energy Efficient Techniques for 5G Ultra Dense Wireless Communication Networks Using Massive MIMO 

  Halefom, Tswaslassie (Addis Ababa University, 2021-10)

  In the modern wireless communication energy consumption becomes critical issue for wireless network operators. With the emergence of 5G wireless communication , the importance of energy efficiency (EE) has been appreciated ...
• Design of Improved TEM Horn Antenna in Double Exponential Approach for Impulse GPR Applications 

  Zekarias, Afework (Addis Ababa University, 2021-05)

  Ground Penetrating Radar (GPR) is a popular geophysical technique that is used to investigate the ground using electromagnetic waves. Analogous to medical imaging GPR is used for subsurface imaging and exploration. Antenna ...
• Minimization of Coupling Loss in Micro strip Antenna Arrays Using Defected Ground Structure & Frequency Selective Surface 

  Leyla, Ahmed (Addis Ababa University, 2021-04)

  The performance of microstrip antenna arrays is greatly undermined by the excitation of space waves and surface waves which cause mutual coupling between microstrip antenna elements. Mutual coupling between antenna ...
• Performance Enhancement of Spectrum Detection Using Hybrid of Energy and Matched filter Detection Algorithms in Cognitive Radio 

  Jemal, Assen (Addis Ababa University, 2021-04)

  Nowadays, there has been an increase in wireless technologies, which are used for variety of applications and services. The need of using wireless services and applications also increased from day to day that brings a ...
• Application of Spread Spectrum Time Domain Reflectometry for ADSL Fault Detection 

  Girma, Teshome (Addis Ababa University, 2021-05)

  The tremendous increase of interest in an increasingly expanding online world, access service providers face many unique challenges. Each and every subscriber are consistently demand more bandwidth to access video, gaming, ...
• Performance Analysis and Optimization in Massive MIMO Systems 

  Amare, Kassaw (Addis Ababa University, 2021-03)

  Next generation networks are expected to support large volume of data tra c generated from emerging applications such as ultra high speed video streaming, machine-tomachine (M2M) communication and the Internet of things ...
• Coverage Planning of Digital Terrestrial Television Broadcasting in Case of Addis Ababa 

  Tiblets, Kinfe (Addis Ababa University, 2018-05)

  Digital Terrestrial Television (DTT) is a technological evolution of broadcast television and an advancement over analog television. The analog television system has been in existence in Ethiopia over the years but now ...
• Low Complexity MIMO-OFDM Receivers for Achieving Near Optimal Performance 

  Nadew, Adisu (Addis Ababa University, 2011-07)

  Since the useable frequency spectrum is a scarce resource, future wireless systems should focus on new technologies that provide high spectral efficiency and improved link reliability. The combination of Multiple Input ...
• Bandwidth and Gain Performance Comparison Of Rectangular-Patch Microstrip Antenna (RMSA) And Coplanar Waveguide (CPW) Rectangular-Patch Antenna 

  Abiy, Bekele (Addis Ababa University, 2011-01)

  In today’s world, microstrip antenna and coplanar waveguide patch antenna are used in all wireless communication such as cellular telephony, satellite, portable personal communication, aircraft, spacecraft, and missile ...
• Performance Evaluation of Downlink Power Domain Non-orthogonal Multiple Access over Rayleigh Channel 

  Hana, Getachew (Addis Ababa University, 2020-06)

  Abstract In the future demand or number of mobile user for wireless service become very large, eventually the number of channels assigned to each cell will be insufficient to support the required number of users. And as ...
• Design and Performance Analysis of Schottky Terahertz Transceiver for 6G Wireless Communication 

  Surafel, Berhanu (Addis Ababa University, 2020-11-13)

  Wireless technology is in a rapid chase of higher data rates to satisfy the growing demands of services and devices which will all interconnect. One of the envisioned technologies to fulfill this is Terahertz wireless ...

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