214 results for “Cognitive Radio, Wireless communications, Dynamic Spectrum Acces”
Research Article
Open Access Bilişsel Radyo Ağlarında Çevrimiçi Öğrenme Tabanlı İşbirlikçi Spektrum Algılama Algoritmasının Sönümlü Kanallardaki Başarımı
Kenan Koçkaya, Koçkaya K, İbrahim Develi, Develi İ
3rd International Symposium on Innovative Approaches in Scientific Studies (Engineering and Natural Sciences) 2019
Spektrum algılamada amaç spektrum boşluklarının doğru ve hızlı bir şekilde algılanmasıdır. Bu nedenle bilişsel radyo ağlarının başarımı büyük ölçüde spektrum algılama işlevine bağlıdır. Bu çalışmada, bilişsel radyo ağlarında spektrum algılma başarımını artırma…
Research Article
Open Access Effect of Non-Gaussian Noise on Detection Performance of Multi-Stage Detectors
Timur Düzenli, Düzenli T, Olcay Akay, Akay O
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.105
It is well known that non-Gaussian noise deteriorates the detection performances of the conventional detection methods. This problem is also encountered in cognitive radio where impulsive structure of noise negatively affects spectrum sensing. Multistage detec…
Research Article
Open Access Bilişsel Radyo Ağlarında Spektrum Algılama için Çevrimiçi Öğrenme Algoritmasına Dayalı Optimum Eşik Modeli
Kenan Koçkaya, Koçkaya K, İbrahim Develi, Develi İ
Ist International Symposium on Innovative Approaches in Scientific Studies 2018
Bilişsel radyo kullanılmayan ya da az kullanılan spektrum bantlarına dinamik olarak erişim olanağı sağlayan ve kullanıcılar arasında herhangi bir olumsuzluğa neden olmadan spektrum paylaşımını gerçekleştiren yazılım tabanlı bir teknolojidir. Kablosuz haberleşm…
Research Article
Open Access Research and Future Trends on Cognitive Radio
Göksel Can, Can G, Ahmet Turgut Tuncer, Tuncer A
International Symposium on Multidisciplinary Studies and Innovative Technologies 2017
Increasing in wireless communications systems is caused to increase in the need of the frequency spectrum. CR (Cognitive Radio) measure or sense frequency spectrum activities on spectrum bands whether they are idle or used by licensed users. According to sensi…
Research Article
Open Access Internet of Things and Agricultural Applications
Ali Çaylı, Çaylı A
3rd International Symposium on Innovative Approaches in Scientific Studies (Engineering and Natural Sciences) 2019
The increasing world population has increased the demand for food. Many threats such as agricultural land use, environmental impacts, global warming and drought risks necessitate industrialization of agricultural production and optimum utilization of existing …
Research Article
Open Access An Investigation of Range-based Localization Methods in Wireless Sensor Networks
Layth Jasim, Jasim L, Bahriye Akay, Akay B
International Symposium on Multidisciplinary Studies and Innovative Technologies 2017
Wireless sensor network (WSN) is a distributed system usually comprising a set of autonomous sensors nodes. These sensors are physically small in size and are capable to communicate with each other and capable of conveying data to recipients. In a large number…
Research Article
Open Access Design and Implementation of a Wireless Sensor Node for Real-time Monitoring Applications
Selçuk Ökdem, Ökdem S, Omar Ibrahim Al-Azzawi, Al-Azzawi O
International Symposium on Multidisciplinary Studies and Innovative Technologies 2017
Wireless Sensor Networks have many application fields including both industrial and military usages. They are used for monitoring temperature, distance, light, and motion in laboratories and/or application specific environments. This paper focuses on developin…
Research Article
Open Access SLR as Non-Orthogonal Multiple Access in 5G Systems
Cebrail Çiftlikli, Çiftlikli C, Musaab Al-Obaidi, Al-Obaidi M, Waeal Al-Obaidi, Al-Obaidi W
2nd International Symposium on Innovative Approaches in Scientific Studies 2018
In the fifth generation (5G), the traditional restrictions that limit the capacity of wireless communication must be
overcome. Non-orthogonal multiple access (NOMA) is a promising solution capable of overcoming these constraints to meet
the requirements of 5…
Research Article
Open Access Electromagnetic Pollution and Electromagnetic Field Mapping in Hatay
Serkan Bulut, Bulut S, Yakup Hameş, Hameş Y, Gülnur Yılmaz, Yılmaz G
International Congress on Human-Computer Interaction, Optimization and Robotic Applications 2019 https://doi.org/10.36287/setsci.4.5.010
With the rapid development of technology and the importance of electronic devices in our lives, electromagnetic waves produced by various sources and the related electromagnetic pollution concepts have become an important issue that directly affects the nature…
Research Article
Open Access Derin Öğrenme-Tabanlı Optimum Eşik Değeri ile Cihazdan Cihaza İşbirlikli İletişim Sistemlerinin Hata Başarımının İyileştirilmesi
Emre Çakar, Çakar E, Ahmet Emir, Emir A, Ferdi Kara, Kara F, Hakan Kaya, Kaya H
International Congress on Human-Computer Interaction, Optimization and Robotic Applications 2019 https://doi.org/10.36287/setsci.4.5.001
Makine öğrenmesi teknikleri, hesaplama hızları, başarımları ve tam bilgiye sahip olunmayan durumlarda bile sunduğu çözümler sayesinde birçok mühendislik problemleri için vazgeçilmez bir araç haline gelmiştir. Tüm mühendislik alanlarında olduğu gibi, kablosuz i…
Research Article
Open Access Support Vector Machine Classifier of Grain Stored in Silo-bags by Using Wireless Network of Temperature and Moisture Sensors
Shawqi Mohammed Othman Farea, Mohammed Othman Farea S, Muzaffer Kanaan, Kanaan M
International Congress on Human-Computer Interaction, Optimization and Robotic Applications 2019 https://doi.org/10.36287/setsci.4.5.003
We propose using support vector machines (SVMs) as a machine learning classifier in a grain-conditionmonitoring system. This system is used to proactively monitor the silobag-stored grain condition. The system consists of a wireless sensor network (WSN) and a …
Research Article
Open Access Comparing the Performance of Encryption Algorithms in ZigBee Based Wireless Sensor Networks
Cebrail Çiftlikli, Çiftlikli C, Kadir Aba, Aba K
Ist International Symposium on Innovative Approaches in Scientific Studies 2018
Wireless Sensor Networks, used widely nowadays, are likely to be unprotected against a variety of external attacks because they are often used in outdoor applications. Protecting the network against attack and ensuring the safety of the data has always been im…
Research Article
Open Access Investigation of Effect of Communication Bandwidth and Length of Coherence Block on Energy Efficiency and Area Throughput in Massive Multiple-Input and Multiple-Output Systems
Burak Kürşat Gül, Gül B, Necmi Taşpınar, Taşpınar N
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.102
The popularity of wireless communication is increasing day by day. This has led to the fact that data transfers via GSM have reached very high levels. Data transfers via GSM, which are continuously growing, increase the density of data traffic, thus necessitat…
Research Article
Open Access Yeni Nesil Telsiz İletişim Sistemleri için Alternatif Modülasyon Adayları: F-QAM ve F-PSK
Birhan Mert Güney , Güney B, Furkan Durukan , Durukan F, Ali Özen , Özen A
3rd International Symposium on Innovative Approaches in Scientific Studies (Engineering and Natural Sciences) 2019
Bu bildiride, 5. Nesil (5th Generation, 5G) haberleşme sistemlerine aday modülasyon yöntemlerinden F-QAM ve FPSK modülasyonları incelenmektedir. F-QAM ve F-PSK modülasyonlarının tek taşıyıcılı haberleşme sistemlerinin başarımı üzerine etkileri incelenmektedir.…
Research Article
Open Access Yer Uydu Haberleşme Sisteminde Mikroşerit Dikdörtgensel Yama Anten Kullanılarak XBee İletişim Mesafesinin İyileştirilmesi
Mehmet Duman, Duman M, Emir Ertan, Ertan E, Seyit Ahmet Koç, Koç S
Proceedings of the 6th International Symposium on Innovative Approaches in Smart Technologies 2022 https://doi.org/10.36287/setsci.5.2.009
Bu projede, Digi Firması’na ait IEEE 802.15.4 internet protokolüne sahip olan ayrıca ZigBee ağ haberleşme sistemine uygun olarak geliştirilen ve 2.4 GHz frekansında çalışan XBee S2C cihazları kullanılmıştır. Yer uydu haberleşme sistemine entegre edilerek alıcı…
Research Article
Open Access Orta Afrika'da elektronik yönetişim: zorluklar ve beklentiler
Mahamat Djamaladine, Djamaladine M, Sami Acar, Acar S, Tinashe Kadirire, Kadirire T
4th International Symposium on Innovative Approaches in Social, Human and Administrative Sciences 2019 https://doi.org/10.36287/setsci.4.8.002
African administrations suffer from slow and cumbersome administrative procedures. Administrative rigidity usually leads to impasse and some citizens do not hesitate to circumvent the administrative formalism by trying to bribe agents of the state or by playin…
Research Article
Open Access 5G ve Ötesi Sistemler için Mm-Dalga İletişimi
Büşra Ceniklioğlu, Ceniklioğlu B, İbrahim Develi, Develi İ
International Congress on Human-Computer Interaction, Optimization and Robotic Applications 2019 https://doi.org/10.36287/setsci.4.5.041
2020 yılına kadar büyük veri gereksinimi ile birlikte kullanıcı sayısının hızlı bir şekilde artmaktadır. Yeni nesil hücresel iletişim teknolojilerinin bu veri trafiği ile beraber daha yüksek veri hızlarını desteklemesi beklenmektedir. Yaklaşan 5.nesil (5th Gen…
Research Article
Open Access SCA-GWO: A Hybrid Optimization Method Based on the PTS Technique for PAPR Mitigation in OFDM Systems
Taba Somia, Somia T, Benchana Mohamed Amine, Amine B, Redadaa Salah, Salah R, Ikni Samir, Samir I
Cognitive Models and Artificial Intelligence Conference 2023 https://doi.org/10.36287/setsci.6.1.028
This work suggests a newly developed partial transmit sequence (PTS) approach consisting of the hybridization of two efficient algorithms, namely, the grey wolf optimization (GWO) algorithm and the sine cosine algorithm (SCA). The SCAGWO-based PTS technique is…
Research Article
Open Access Karar Ağaçları ile Otistik Spektrum Bozukluğu Tanısı Koyma
Büşra DUYGU , DUYGU B, Merve KOCAOĞLU , KOCAOĞLU M, Aysun COŞKUN , COŞKUN A
3rd International Symposium on Innovative Approaches in Scientific Studies (Engineering and Natural Sciences) 2019
Çalışmamız; sosyal etkileşim, tekrarlayan davranışlar, kısıtlı ilgi alanları ve iletişim sorunu olarak ortaya çıkan ve ömür boyu devam eden bir gelişim bozukluğu olan Otizmin erken tanısı üzerine gerçekleştirilmiştir. Karar ağacı algoritmaları ile Otistik Spek…
Research Article
Open Access P3b amplitudes differences in ultra-rapid visual categorization task of food and non-food items
Tawhida Jahan, Jahan T
4th International Symposium on Innovative Approaches in Social, Human and Administrative Sciences 2019 https://doi.org/10.36287/setsci.4.8.003
P300, especially P3b, the third positive peak with near 350ms associated with occipito-patieto-temporal region of the brain, is mainly responsible for categorization of different objects. So, this study investigates the nature of amplitude and reaction time d…