Yayın tarihi için Fen Bilimleri Enstitüsü / Graduate School for Science and Engineering listeleme
Toplam kayıt 188, listelenen: 41-60
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Channel adaptive user cooperation strategies for fading wireless channels
(Işık Üniversitesi, 2006)In this dissertation, a channel adaptive method is proposed for a two user halfduplex cooperative communication system under the assumption of perfect channel state information at the transmitters and the receiver. An ... -
A software process assessment model and a tool for XP@SCRUM agile method
(Işık Üniversitesi, 2006)In today's fast and competitive world, Agile Methods has become popular by software producers because for their high-speed, flexibility and responding to change quickly. These methods have been criticized as undisciplined ... -
An industrial application using blackboard architecture
(Işık Üniversitesi, 2006)This thesis implements control architecture for goal-driven blackboard systems. The architecture is based on searching a general goal tree by diminishing into sub-goal trees. The aim is to develop a problem solving ... -
Circuit models with mixed lumped and distributed elements for passive one-port devices
(Işık Üniversitesi, 2006-01-23)In this thesis, to model measured data obtained from an actual passive one-port device, a circuit modeling method with mixed lumped and distributed elements is proposed. Namely, measured data is modelled by means of its ... -
An infrastructure and a methodology for business process management
(Işık Üniversitesi, 2006-03)This thesis explains in detail an infrastructure and a methodology for business process management as BPM requires much more of a partnership between business and IT. With the proper methodology the business will get the ... -
New approaches for channel estimation in wireless communications
(Işık Üniversitesi, 2006-03-10)This thesis first proposes a conputationally efficient, pilot-aided linear minimum mean square error (MMSE) batch channel estimation algorthm for the orthogonal frequency division multiplexing OFDM systems in unkonown ... -
Performance and security issues in e-payment systems: pay on-line case
(Işık Üniversitesi, 2006-06)In this thesis, we report an experience on Performance and Security issues in E-Payment systems. We develop an E-Payment system which covers all introduced performance and security measures written in this thesis. We also ... -
Database design and implementation issues in library domain
(Işık Üniversitesi, 2006-07)In this thesis, we study the design and implementation issues in library management systems. Depending heavily on data, library management systems should have effective means to access and store data. We propose a novel ... -
Implementation of cooperative diversity in space frequency coded OFDM system
(Işık Üniversitesi, 2007)Wireless technology is becoming an important part of our daily life. Although earlier wireless technologies were developed to provide voice transmission which did not require large amount of bandwidth, we are now equipped ... -
A statistical approach to web usability analysis
(Işık Üniversitesi, 2007)A survey is conducted on 35 experienced Internet users to asset the usability of Turkish e-Commerce Web sites. The data is collected using a 28 questions survey consisting of three categories. ANOVA method is used for the ... -
Insertion loss design of rf filters with mixed lumped - distributed realization
(Işık Üniversitesi, 2007)In this study, the purpose was to develop a user friendly software tool which enables to design microwave filters with lumped circuit elements, distributed transmission lines and mixed lumped-distributed circuit elements. ... -
A simulation tool for the comparison of the number portability solutions
(Işık Üniversitesi, 2007)Number Portability is a very important instrument for competition in telecommunication sector. This study aims to investigate Number Portability and the solutions for constructing and managing Number Portability from the ... -
Driver recognition and driver verification using data mining technigues
(Işık Üniversitesi, 2007-09-25)In this thesis we present our research in driver recognition and driver verification. The goal of this study is to investigate the affect of different classifier fusion techniques on the performance of driver recognition ... -
Optimization of integer-pel motion estimation for H.264 video encoding on tms 320c6416t digital signal processor
(Işık Üniversitesi, 2007-12-03)Video processing is used in many applications such as broadcast television and home entertainments. Video applications have been revolutionized by the advent of digital TV and DVD-video players. The standardization of video ... -
Usability analysis of Campus ONLINE, a web-based course registration system
(Işık Üniversitesi, 2008)In this thesis we present our research in usability analysis of a web-based course registration system of our university which is Campus ONLINE, with using a proxy based user interaction and activity tracking system. The ... -
Security of chaotic cryptosystems
(Işık Üniversitesi, 2008)In this thesis, we tried to show the weaknesses of chaotic cryptosystems. We break four chaos-based cryptosystems and proved our attacks. In our first cryptanalysis, we broke a cryptosystem based on two dimensional chaotic ... -
Cost sensitive learning algorithms
(Işık Üniversitesi, 2008)This thesis studies the cost sensitive learning algorithms that calculate the class learning algorithms errors and costs. Data mining is the automated extraction of hidden predictive information from databases that can be ... -
Artifact reduction in occluded regions for motion compensated frame interpolation
(Işık Üniversitesi, 2008)In this paper, we propose a new method to be used in occluded regions for motion compensated frame interpolation. Frame rate up conversion is becoming much more important when usage of digital video systems increase. ... -
Soa based form development framework with web 2.0
(Işık Üniversitesi, 2008)Enterprise companies require central, web based, performance proved robust applications. There are different types of frameworks and design patterns to fulfill this requirement. The author of this thesis and a team of ... -
Secure SMS using simplified PGP
(Işık Üniversitesi, 2008)While communicating with your partner, the ability to communicate in a secure way is a fundamental and important requirement for information security. Security of communication requires identification and verification of ...