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Comparative study of the transmission ellipsometric function contours and the Smith chart
(Georgia Institute of Technology, 2006-05)
Transmission ellipsometry is governed by the transmission ellipsometric function (TEF) of a film-substrate system. The function can be analyzed through a series of constant-thickness contours and constant-angle-of-incidence ...
Estimation of the Longitudinal and Lateral Velocities of a Vehicle using Extended Kalman Filters
(Georgia Institute of Technology, 2006-11-20)
Vehicle motion and tire forces have been estimated using extended Kalman filters for many years. The use of extended Kalman filters is primarily motivated by the simultaneous presence of nonlinear dynamics and sensor noise. ...
Enhancing the Multimedia Experience in Emerging Networks
(Georgia Institute of Technology, 2006-11-20)
As multimedia processing and networking technologies, products and services evolve, the number of users communicating, collaborating and entertaining over the IP networks is growing rapidly. With the emergence of pervasive ...
Iterative Channel Estimation for Wireless Communications
(Georgia Institute of Technology, 2006-11-20)
The main objective of this dissertation is to present the structural design, performance evaluation, and complexity reduction of iterative joint channel estimation and data detection receivers. One of the main technical ...
OFDM-based Cooperative Communications in a Single Path Relay Network and a Multiple Path Relay Network
(Georgia Institute of Technology, 2006-11-10)
In this thesis, we investigate cooperation by applying OFDM signals to cooperative relay networks. We consider the single path relay network and the multiple path relay network. Using the amplify-and-forward relay ...
Optoelectronic device simulation: Optical modeling for semiconductor optical amplifiers and Solid state lighting
(Georgia Institute of Technology, 2006-04-11)
This dissertation includes two parallel topics: optical modeling of wavelength converters based on semiconductor optical amplifiers (SOA) and optical modeling for LEDs and solid state lighting. A steady-state numerical ...
Energy-Efficient Network Protocols for Wireless Sensor and Actor Networks
(Georgia Institute of Technology, 2006-08-15)
Wireless sensor networks (WSNs) have a wide variety of applications in civilian, medical and military applications. However, the nodes in such a network are limited to one type of action: sensing the environment. With ...
Applications of Low Density Parity Check Codes for Wiretap Channels and Congestion Localization in Networks
(Georgia Institute of Technology, 2006-11-14)
Error control coding in some form is present in virtually every communication system today. Recently, Low Density Parity Check (LDPC) codes have been proposed along with a simple iterative decoding algorithm. These codes ...
Optical Label Switching Technologies for Optical Packet Switched Networks
(Georgia Institute of Technology, 2006-11-20)
Optical packet switching (OPS) is the most prominent candidate transport solution that can seamlessly integrate electrical and optical layers by transferring certain switching functionality from electronics to optics, thus ...
Exploiting Floating-Gate Transistor Properties in Analog and Mixed-Signal Circuit Design
(Georgia Institute of Technology, 2006-08-07)
With the downscaling trend in CMOS technology, it has been possible to utilize the advantages of high element densities in VLSI circuits and systems. This trend has readily allowed digital circuits to predominate VLSI ...