IoT erişimli akıllı şehirlerde radyo frekansı parmak izi tabanlı yayıcı konumlandırma

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2023

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Mechatronics Engineering
(2002)
The Atılım University Department of Mechatronics Engineering started its operation in 2002 as the Education Program in Mechatronics Engineering holding a “department” status in Turkey. In addition, it is the first and the only institution for mechatronic engineering education to obtain a MÜDEK (Association for Evaluation and Accreditation of Engineering Programs) accreditation for a duration of 5 years. Mechatronics engineering is a discipline of engineering that combines mechanical, electrical and electronic engineering and software technologies on a machine or a product. These features place the field on a pedestal in today’s industry. The education at our department is also backed by substantial laboratory opportunities. Our students create interesting products of their skills and creativity for their dissertation projects. Should they wish to do so, our students may also proceed with a double-major program in the fields of Computer Engineering, Electrical - Electronics Engineering, Industrial Engineering, or Mechanical, Automotive or Software Engineering. Upon their demands, the Department of Mechatronic Engineering also offers a “Cooperative Education” program implemented in coordination with industrial institutions. Students receiving a portion of their training at industrial institutions and prepare for professional life under this program
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Department of Electrical & Electronics Engineering
Department of Electrical and Electronics Engineering (EE) offers solid graduate education and research program. Our Department is known for its student-centered and practice-oriented education. We are devoted to provide an exceptional educational experience to our students and prepare them for the highest personal and professional accomplishments. The advanced teaching and research laboratories are designed to educate the future workforce and meet the challenges of current technologies. The faculty's research activities are high voltage, electrical machinery, power systems, signal and image processing and photonics. Our students have exciting opportunities to participate in our department's research projects as well as in various activities sponsored by TUBİTAK, and other professional societies. European Remote Radio Laboratory project, which provides internet-access to our laboratories, has been accomplished under the leadership of our department with contributions from several European institutions.

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Kablosuz teknolojinin hızlı gelişimi, Nesnelerin İnterneti'nin (IoT) önemini artırdı. IoT uygulamaları, çeşitli sektörlerde maliyetleri azaltmak ve performansı yükseltmek için kullanılıyor. Akıllı şehirlerde bu tür uygulamalardan yararlanılarak konumlandırma tabanlı hizmetler de sunulmaktadır. Coğrafi bölgelerde konumlandırma talebi nedeniyle uzun yıllardır çeşitli konumlandırma prosedürleri kullanılmaktadır. Radyo frekansı parmak izi (RFF) konumlandırması, makine öğrenimi (ML) yöntemlerindeki son gelişmelerin sağladığı avantajlar dikkate alındığında en etkili yöntemlerden biri haline geldi. Makul fiyatlı ve yüksek performanslı bir IoT kablosuz teknolojisini uygulamak, konumlandırmada zorlu bir konudur. Bu bağlamda, IQRF teknolojisi yeni fırsatlar sunmaktadır. Bu nedenle, 868 MHz bandında çalışan IQRF sensör düğümlerini içeren bir sistemde bu tez, makine öğreniminde denetimli sınıflandırma yöntemlerini uygulayan bir alınan sinyal gücü göstergesi (RSSI) parmak izi tabanlı konumlandırma yöntemi önerir. Bu amaçla, Görüş Hattı (LoS) bağlantıları için yerel bir dış ortamda ölçümler yürütüldü. Elde edilen sonuçlar, 'Torbalı Ağaçlar', 'Ağırlıklı k-NN' ve 'Orta Gaussian SVM' yöntemlerinin son derece güçlü tahmin doğruluğunu gösterir. Tezin sonuçları, akıllı şehirlerde radyo frekansı parmak izine dayalı konumlandırma sistemlerinin ilerlemesine destek olma potansiyeline sahiptir.
The rapid advancement of wireless technology has grown the significance of the Internet of Things (IoT). IoT applications are being used to decrease costs and improve performance across various industries. In smart cities, such applications are also utilized to offer localization-based services. Several localization procedures have been used for long years due to the demand for localization in geographic regions. Radio frequency fingerprinting (RFF) localization has become one of the most effective methods when considering the advantages provided by recent advancements in machine learning (ML) methods. Implementing a reasonable-priced and high-performance IoT wireless technology is a challenging issue in localization. In this regard, IQRF technology presents novel opportunities. Thus, in a system comprising IQRF sensor nodes operating in the 868 MHz band, this thesis proposes a received signal strength indicator (RSSI) fingerprint-based localization method implementing supervised classification methods in ML. To this end, measurements for Line-of-Sight (LoS) links were conducted in a local outdoor environment. The achieved results show the exceptionally strong prediction accuracy of the 'Bagged Trees', 'Weighted k-NN', and 'Medium Gaussian SVM' methods. The results of the thesis have the potential to assist in the advancement of localization systems based on RFF in smart cities.

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Elektrik ve Elektronik Mühendisliği, Electrical and Electronics Engineering

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72