Browsing OzU Theses & Dissertations by Issue Date
Now showing items 1-20 of 516
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Performance analysis and optimization of relay-assisted free space optical communication systems
(2012-07)Free-space optical (FSO) communication has received an increasing attention in recent years with their ability to achieve ultra-high data rates (at the order of multiple gigabits per second) over unlicensed optical spectrum. ... -
Induction cooker design and experimental results with quasi resonant topology and jitter method
(2012-08)This thesis presents an induction cooker design and its detailed experimental results. The design is based on Quasi Resonant Topology and is unique in terms of the particular Jitter Method it employs to drive the semiconductor ... -
A simulation study of cooperative underwater acoustic communication
(2012-08)Cooperative communication promises significant performance gains in terms of link reliability, spectral efficiency, system capacity, and transmission range. Due to its indisputable advantages for high-speed underwater ... -
Multi-pick round robin arbiter
(2012-08)In this thesis, we propose two multi(m)-pick Round Robin Arbiter (RRA) architectures. An m-pick RRA selects the m topmost requests out of n inputs with priority order indicated by an internally kept pointer (with an update ... -
Fast, secure, and remote multiboot of FPGAs
(2012-09)The purpose of this thesis is to develop an efficient framework to implement secure FPGA-based (Field Programmable Gate Array) systems. An FPGA is a reconfigurable device that has the ability to adapt the hardware during ... -
Analysis of ALTO protocol over P2P networks
(2012-10)Currently, for distributed applications such as Peer-to-Peer (P2P) and Content Delivery Networks (CDNs), the most important challenge is to determine the optimal peer or node selection process, since it sometimes causes ... -
P2P live scalable video streaming with ALTO service
(2012-10)It has been measured that, as high as 80% of the average Internet traffic is now from peer-to-peer (P2P) applications, and upwards of 90% during peak hours. These results tell us that a significant portion of the traffic ... -
Application-based scheduling for indoor femtocell networks
(2013-01)This thesis is concerned with designing a QoS-enabled, application-based scheduler for indoor femtocell networks. For this purpose, a novel scheduler is proposed which takes into account the quality of service (QoS) ... -
Joint frequency allocation and power control for minimum downlink interference in femtocellular networks
(2013-01)Due to the fact that the most of data services and more than half of calls are requested indoors, it has been dramatically important and even a must for cellular operators to provide more than adequate indoor coverage. ... -
Fault masking as a service
(2013-01)In service-oriented architectures, composite services depend on a set of partner services to perform their tasks. These partner services may become unavailable due to system and/or network faults, leading to an increased ... -
Comparison of text-independent speaker verification systems in a multi-class, semi-automatic detection scenario
(2013-06)Performance of the speaker veri cation systems is typically measured based on their binary decision accuracy. Soft outputs of the systems are used mostly for calibration or multiple system combination purposes. However, ... -
Design and implementation of a data stream management system with advanced complex event processing capabilities
(2013-06)The world has seen proliferation of data stream applications over the last years. These applications include computer network monitoring, Radio Frequency Identication (RFID)-based supply chain and traffic management systems, ... -
A hybrid statistical/unit-selection text-to-speech synthesis system for morphologically rich languages
(2013-06)Two most prominent examples of Text-to-Speech (TTS) systems are Unit Selection based TTS (UTTS) and the Hidden Markov Model (HMM) based TTS (HTTS). UTTS has been the dominant approach of the last decade while HTTS has been ... -
Information theoretical performance analysis and optimization of underwater acoustic communication systems
(2013-08)Underwater wireless communication is a rapidly growing field of research and engineering as its applications, which were once exclusively military, are extending into commercial fields. The need for underwater wireless ... -
Real-time event correlation and alarm rule mining models for complex event processing systems
(2013-08)World is creating the same quantity of data every two days, as it created from up until 2003. Evolving data streams are key factor for the growth of data created over the last few years. Streaming data analysis in real-time ... -
Experimental QOS-based comparison of olsr and B.A.T.M.A.N. mesh routing algorithms for multimedia home networks
(2013-08)Wireless Mesh Networks (WMNs) allow communication of two nodes via a multi-hop route, without the need for an infrastructure such as base stations. Routing has been a fundamental issue for this type of communication networks. ... -
Investigation of the refrigerator bottom cabinet cavity acoustic behavior
(2013-08)This thesis investigates the computational and experimental analysis for the acoustic behavior of a bottom cabinet cavity in a refrigerator. The finite element and analytical approaches are used in order to determine the ... -
Fall detection for elderly people using depth video data obtained by kinect
(2013-08)Automatic detection of unusual events such as falls is very important especially for elderly people living alone. Real-time detection of these events can reduce the health risks associated with a fall. There has been a ... -
A smart cloud platform service for socialized travel and transportation with mobile support
(2013-09)It is now clear that social networking services are evolving towards mobile web applications and continuous location sharing is also becoming a trend. In this evolution, we believe that the next step will be complete and ... -
Tıbbi müdahale hatalarında bilirkişinin rolü
(2014)Bilirkişi görüşlerinin davaların sonuçlandırılmasında çok etkili bir rolü vardır. Mahkemeler, ceza ve hukuk davalarında, Hakimlerin çözmekte zorlandığı bilimsel konulara açıklık getirmek için bilirkişilerin görüşlerine ...
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