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Now showing items 1-20 of 183

Accelaration of Preprocessors of the Snort Network Intrusion Detection System Using General Purpose Graphics Processing Unit

Yihunie, Simegnew (Addis Ababa University, 2015-04)

Advances in networking technologies enable interactions and communications at high speeds and large data volumes. But, securing data and the infrastructure has become a big issue. Intrusion Detection Systems such as Snort ...
Acceleration and Energy Reduction of Object Detection on Mobile Graphics Processing Unit

Fitsum, Assamnew (Addis Ababa University, 2019-06)

The evolution of high performance computing in today’s smartphones is enabling their use in compute-intensive applications. As the compute requirement increases, the energy required to do the computation cannot increase ...
Adaptive Antenna Array Algorithms and Their Impact on Code Division Multiple Access Systems (CDMA).

Hadgu, Dereje (Addis Ababa University, 2004-03)

In mobile communications there is a need to increase the channel capacity. The increasing demand for mobile communication services without a corresponding increase in RF spectrum allocation (channel capacity) motivates the ...
Adaptive modulation based cooperative MIMO in fading channel for future wireless technology

Ahmed, Niema (Addis Ababa University, 2017-03)

With the rapid growth of multimedia services, future generations of cellular communications require higher data rates and a more reliable transmission links while keeping satisfactory quality of service. The data rate and ...
Amharic Named Entity Recognition Using Neural Word Embedding as a Feature

Dagimawi, Demissie (AAU, 2017-10)

In this paper, Amharic Named Entity Recognition problem is addressed by employing a semi-supervised learning approach based on neural networks. The proposed approach aims at automating manual feature design and avoiding ...
Amharic Parts-of-Speech Tagger using Neural Word Embeddings as Features

Mequanent, Argaw (Addis Ababa University, 2019-01)

The parts-of-speech (POS) tagging for Amharic language is not matured yet to be used as one important component in other natural language processing (NLP) applications. Previous studies done on Amharic POS tagger used ...
Amharic Sign Language Recognition based on Amharic Alphabet Signs

Nigus, Kefyalew (Addis Ababa University, 2018-03-16)

Sign language is a natural language mostly used by hearing impaired persons to communicate with each other. At present day, sign language explainers are used to eliminate the language obstacles between people who are hearing ...
Analysis and Detection Mechanisms of SIM Box Fraud in The Case of Ethio Telecom

Frehiwot, Mola (Addis Ababa University, 2017-12-12)

Telecommunication fraud can be defined as theft of services (fixed telephone, mobile, data and etc.) or measured abuse of voice or data networks. Fraud is one of the most severe threats to revenue and quality of service ...
Analysis and Evaluation of Diversity-Multiplexing Tradeoff for Multiple-Antenna systems in Ultra Wideband (UWB-MAS) and Rake Receiver

Hailu, Gebremariam (Addis Ababa University, 2012-07)

Ultra wide-band (UWB) systems have recently attracted much research interest owing to their appealing features in short-range wireless communications. These features include high data rates, low power consumption, multiple ...
Analysis of the Key Exchange method of SSH using Elliptic Curve Cryptography and a Public Key Infrastructure

Hailu, Banchi (Addis Ababa University, 2008-02)

SSH, Secure Shell, is a protocol that allows user to log into another computer, to execute commands in a remote machine, and to move files from one machine to another securely over an insecure network. It provides ...
Analyzing and Assessing Tradeoffs and Effects of Energy Related Parameters on Wireless Sensor Networks for Optimizing Sensor Network Lifetime

Tesfaye, Bisratie (Addis Ababa University, 2014-06)

Sensor technologies have become vital today in gathering information about close by environments and its use in wireless sensor networks is getting widespread popular every day. These networks are characterized by a number ...
Analyzing and Proposing A Solution for the Incompatibility Problem of Tcp Vegas

Wassie, Keria (Addis Ababa University, 2008-03)

TCP is a reliable, connection-oriented and sequence-delivery protocol. All applications which require a reliable delivery of data use TCP. TCP-Reno and TCP-Vegas are some of the TCP types created to give a reliable service ...
Ancient Ethiopic Manuscript Recognition Using Deep Learning Artificial Neural Network

Getu, Siranesh (Addis Ababa University, 2016-03)

The recognition of handwritten documents, which aims at transforming written text into machine encoded text, is considered as one of the most challenging problems in the area of pattern recognition and an open research ...
Application Layer DDoS Attack Detection In The Presence Of Flash Crowds

Biruk, Asmare (Addis Ababa University, 2017-09)

Application layer DDoS attacks are growing at alarming rate in terms of attack intensity and number of attack. Attackers target websites of government agencies as well as private business for diﬀerent motives. One ...
ASSESMENT OF NEXT GENERATION NETWORK, SERVICES AND MIGRATION STRATEGIES The Case of Ethiopian Telecommunication Corporation

Abrha, Bewket (Addis Ababa University, 2005-08)

The development of telecommunication systems during the past two decades has been from the circuit switched towards the packet switched paradigm. Initially a distinction was made between telecommunications and computer ...
Assessing the Effect of Packet Size on Proactive Mobile Ad Hoc Network Routing Protocols

Daniel, Iyasu (Addis Ababa University, 2014-10)

The existence of different kinds of wireless technologies enabled formation of two types of Mobile Ad hoc Networks (MANET). Homogeneous MANETwhere communication is entirely infrastructurless and Heterogeneous MANET where ...
An Automatic Diabetic Retinopathy Detection Using Artificial Neural Network

Senait, Getahun (AAU, 2018-05)

Diabetic retinopathy is a disease that affects the eye of a diabetic patient. Diabetics being the abnormal level of glucose in the human blood, it is a cause for several types of organ disorders in the body. One of them ...
Automatic Semantic Video Object Segmentation

Tamir, Eneyachew (Addis Ababa University, 2007-12)

Content-based video processing is one of the methods considered to meet the demands of newly emerging multimedia applications. For content-based processing, video has to be segmented into meaningful objects – semantic ...
Bi-Directional English-Afan Oromo Machine Translation Using Convolutional Neural Network

Arfaso, Birhanu (Addis Ababa University, 2019-10-14)

Many languages are spoken across the world which can bring communication gaps where two people that speak different languages cannot communicate. Usually, this communication gap is solved by using a human interpreter. ...
Biogas From Waste –to-Energy; Green Power and Clean Environment for Bole Lemi Industrial Zone

Girma, Firehiwot (Addis Ababa University, 2017-02)

The current model for electricity generation and distribution in Ethiopia is dominated by centralized power plants typically based on hydro power resource. Most of the substation in the country are old and needs upgrading. ...

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