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Browsing by Author "Ilyas, M."

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    Spectrum Behavior Prediction and Optimized Throughput /Time Performance Using Ffnn in Cognitive Radio
    (Institute of Electrical and Electronics Engineers Inc., 2020) Sadeq, M.A.; Bayat, O.; Ilyas, M.; Ashour, O.I.; 01. Çankaya Üniversitesi
    Progressively, number of radio spectrum users is increasing as life tends towards new technologies in all sectors, so even those users of licensed band are demanding larger radio spectrum. Users may get assigned into other bands to balance the radio spectrum congestion. In this paper, radio spectrum is sensed for void detection and secondary user assignment. Cognitive users are participating the white band either by transmitting alongside with primary users or waiting until the hole is getting vacant. During the period of transmission, the behaviors of primary users are studied for determining the spectrum occupancy status. The activity of primary users is simulated as random variables due to uncertain behaviors from time perspectives. Issues like channel noise and fading effects stand as interrupters of spectrum sensing which make spectrum holes to appear busy due to such incidents. Cognitive Radio network is modeled by using MATLAB software so that both primary and secondary users can sense the spectrum and share the spectrum effectively by employing the approach of waiting time estimator which provides behaviors and activity matrix. Candidates are made to share the spectrum and hereafter transmission delay and throughput are examined when underlay and interweave spectrum sharing were in use. Three techniques are used to share the spectrum which are underlay, interweave and Feed Forward Neural Network. The results shown that feed forward neural network is outperformed in both time delay minimization and throughput enhancement. © 2020 IEEE.
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    A Web Application for Company Reports Management System
    (Association for Computing Machinery, 2020) Hamer, H.M.; Ashour, O.I.A.; Ilyas, M.; 01. Çankaya Üniversitesi
    Electronic management is administrative strategy in age of the information for achieving best services to the people and institutions by using information resources and reducing time, cost and effort. In this research we converted a paper work system into electronic management for a report system in a oil company. The proposed system uses the web application using PHP and MySQL. The system proposed achieved the purpose of this study. by applying an electronic system for reports management, this system contains database for storing the report resources information for the company, it provides access easily to data through GUI which contains many of keys to conduct different processes on data, such as modification and query. This system allows just for authorized users to access the system through protection windows. Also, the proposed system leads to convert the paper information to electronic information and saved it in the database. Protecting the information electronically, which were in previous as a paper documents prone to damage. © 2020 ACM.