Now showing items 21-38 of 38

  • FLEX: A Modular Software Architecture for Flight License Exam 

    This paper is about the design and implementation of an examination system based on World Wide Web. It is called FLEX-Flight License Exam Software. We designed and implemented flexible and modular software architecture. The implemented system has basic specifications such as appending questions in system building exams with these appended questions and making students to take these exams. There are three different types of users with different authorizations. These are system administrator operators ...

  • Implementation of Pci-Dss V3.0 information security standards 

    Authors:Taşdemir, Özgür
    Publisher and Date:(Kadir Has University, 2015)
    Way of doing business has changed with rapid spread of the internet and mobile devices and payment systems must keep up with that. Most of the monetary transactions are done electronically and percentage of internet trade is growing rapidly. information is being more important for companies and individuals when it comes to payment systems. Fraudulent transaction rates have been increased significantly with the positioning of payment systems in public networks such as the internet and Wi-Fi which ...

  • Improvement of indoor positioning accuracy of ultra-wide band sensors by using big bang-big crunch optimization method 

    Authors:Arsan, Taner
    Publisher and Date:(Pamukkale Univ, 2018)
    Ultra-wide Band technology is an emerging technology that offers successful solutions in many indoor positioning systems and performs better than other methods. In this study an indoor positioning system using Ultra-wide Band (UWB) sensors was developed and it was aimed to increase the accuracy level of the standard equipment with the additional algorithms used while reducing the average error. For this purpose the Big Bang-Big Crunch (BB-BC) optimization method has been applied to the experimental ...

  • Improving the accuracy of indoor positioning system 

    Authors:Hameez, Mohammed Muwafaq Noori
    Publisher and Date:(Kadir Has University, 2019)
    Indoor positioning applications needs high accuracy and precision to overcome the existing obstacles and relatively small areas. There are several methods which could be used to locate an object or people in an indoor location. Specifically, Ultra-wide band (UWB) sensor technology is a promising technology in indoor environments because of its high accuracy, resistance of interference and better penetrating. This thesis is focused on improving the accuracy of UWB sensor based indoor positioning ...

  • Indoor positioning system development / triangulation algorithm with least square method 

    Authors:Alp, Ebru
    Publisher and Date:(Kadir Has University, 2015)
    Nowadays, smartphone market penetration continues to grow with developing technology. Accordingly, position detection in closed areas has become an important research area. For instance; finding a direct route to the gate based on location at an airport, determining a route to the destination that could be a shop or cafe at a shopping center or informing about sales discount to increase sales using location are several applicable areas of position estimation. In the thesis, I developed triangulation ...

  • Model based predictive rate controller for video streaming 

    Authors:Arsan, Taner
    Publisher and Date:(2009)
    Due to the heterogeneous structure of networks video streaming over lossy IP networks is very important issues. Infrastructure of the Internet exhibits variable bandwidths delays congestions and time-varying packet losses. Video streaming applications should not only have a good end-toend transport performance but also have a robust rate control because of variable attributes of the Internet. Furthermore video streaming applications should have a multipath rate allocation mechanism. So for providing ...

  • New generation android operating system-basedmobile application: RSS/news reader 

    Authors:Arsan, Taner; Erşahin, Mehmet Arif; Alp, Ebru
    Publisher and Date:(Springer Verlag, 2015)
    RSS (Rich Site Summary)/News Reader is a web-based Android OS application developed by using PhoneGap framework. HTML5 CSS and JavaScript are basically used for implementation instead of native Android programming language. This application has a production process like a web application because it is actually a fully working web program which is wrapped by PhoneGap framework. This means the application could be used on almost every mobile platform with making some basic arrangements.RSS/News ...

  • Performance comparison of locality sensitive hashing and random forest algorithms for handwritten digits recognition 

    Authors:Cayir, Aykut
    Publisher and Date:(Kadir Has University, 2014)
    The significant increase in data created has caused to come out a new concept which is called big data. in addition to that multidimensional data instances in big data sets have many new features. Therefore some problems become much more critical for data analysis in big data sets. One of these very important problems is classification of multidimensional data instances in big data sets in a reasonable time. Classification is also related to K-Nearest Neighbors problem in machine learning and data ...

  • Power control and resource allocation in TDD-OFDM based femtocell networks with interference 

    Femtocell technology is a promising solution for different dilemmas in cellular networks. In femtocell power control the interference experienced by the network is divided into two main tiers according to the type of network whose signal is interfering with another network. In utilizing the functionality of a two-tier network where femtocell technology is deployed a major challenge is in sharing the frequency resource of a macrocell. This paper proposes an enhanced dynamic algorithm bounded by two ...

  • Power Control and Resource Allocation in TDD-OFDM Based Femtocell Networks with Interference 

    Authors:Altabbaa, Mhd Tahssin; Arsan, Taner; Panayırcı, Erdal
    Publisher and Date:(IEEE, 2017)
    Femtocell technology is a promising solution for different dilemmas in cellular networks. In femtocell power control the interference experienced by the network is divided into two main tiers according to the type of network whose signal is interfering with another network. In utilizing the functionality of a two-tier network where femtocell technology is deployed a major challenge is in sharing the frequency resource of a macrocell. This paper proposes an enhanced dynamic algorithm bounded by two ...

  • Predictive control of a constrained pressure and level system 

    The focus of this paper is the implementation of a constrained predictive control algorithm implemented in Multi-Parametric Toolbox (MPT) which is a free MATLAB toolbox for design analysis and implementation of controllers for constrained linear nonlinear and hybrid systems. In general MPT is used for modeling systems offline. The novelty of this study is that real-time mode MPT is used in process control. We also combined the Model Predictive Control Toolbox with MPT. This novel controller is ...

  • Received signal strength based least squares lateration algorithm for indoor localization 

    Authors:Daǧ, Tamer; Arsan, Taner
    Publisher and Date:(Pergamon-Elsevier Science Ltd, 2018)
    Following the success of accurate location estimation for outdoor environments locating targets in indoor environments has become an important research area. Accurate location estimation of targets for indoor environments has the potential for the development of many different applications such as public safety social networking information and mapping services. However the GPS (Global Positioning System) technology used for outdoor environments is not applicable to indoor environments making ...

  • Review of bandwidth estimation tools and application to bandwidth adaptive video streaming 

    Authors:Arsan, Taner
    Publisher and Date:(IEEE, 2012)
    Streaming video is very popular in today's best effort delivery networks. Streaming video applications should not only have a good end-to-end transport performance but also have a Quality of Service (QoS) provisioning in network infrastructure. Bandwidth estimation schemes have been used to improve the QoS of multimedia services and video streaming applications. To ensure the video streaming service quality some other components such as adaptive rate allocation and control should be taken into ...

  • Review of bandwidth estimation tools and application to bandwidth adaptive video streaming 

    Authors:Arsan, Taner
    Publisher and Date:(IEEE, 2012)
    Streaming video is very popular in today's best effort delivery networks. Streaming video applications should not only have a good end-to-end transport performance but also have a Quality of Service (QoS) provisioning in network infrastructure. Bandwidth estimation schemes have been used to improve the QoS of multimedia services and video streaming applications. To ensure the video streaming service quality some other components such as adaptive rate allocation and control should be taken into ...

  • Smart Systems From Design to Implementation of Embedded Smart Systems 

    Authors:Arsan, Taner
    Publisher and Date:(IEEE, 2016)
    This paper aims to explain the design and implementation procedure of embedded Smart Systems. The idea is supported by four different Smart Systems as Smart Home Smart Agriculture Smart Campus and Seat and Study Module of Smart Library. All designs and implementations contains technological components of embedded systems mobile application development cloud based services and client side graphical user interface. Ultimately this paper gives an overview of current state of the art concerning Smart ...

  • Subchannel Allocation and Power Control for Uplink Femtocell Radio Networks with Imperfect Channel State Information 

    Femtocell technology is emerging as a key solution for mobile operators for its advantage in coverage and capacity enhancement along with its cost effectiveness. However densely and randomly deployed femtocells while sharing the frequency spectrum of the macrocell arises a severe interference environment. In femtocells deployment interference coming from a femtocell user affect other femtocell users and the macrocell users where maintaining the communication of the users in both tiers is a mandatory. ...

  • Subchannel Allocation and Power Control for Uplink Femtocell Radio Networks with Imperfect Channel State Information 

    Authors:Altabbaa, Mhd Tahssin; Arsan, Taner; Panayırcı, Erdal
    Publisher and Date:(Springer, 2019)
    Femtocell technology is emerging as a key solution for mobile operators for its advantage in coverage and capacity enhancement along with its cost effectiveness. However, densely and randomly deployed femtocells while sharing the frequency spectrum of the macrocell arises a severe interference environment. In femtocells deployment, interference coming from a femtocell user affect other femtocell users and the macrocell users, where maintaining the communication of the users in both tiers is a ...

  • Transmitter source location estimation using crowd data 

    The problem of transmitter source localization in a dense urban area has been investigated where a supervised learning approach utilizing neural networks has been adopted. The cellular phone network cells and signals have been used as the test bed where data are collected by means of a smart phone. Location and signal strength data are obtained by random navigation and this information is used to develop a learning system for cells with known base station location. The model is applied to data ...