Now showing items 503-522 of 597

• #### Spatial and Temporal Image Prediction with Magnitude and Phase Representations ﻿

(2011)
In this dissertation, I develop the theory and techniques for spatial and temporal image prediction with the magnitude and phase representation of the Complex Wavelet Transform (CWT) or the over-complete DCT to solve the ...
• #### Spectrum sharing techniques for next generation cellular networks ﻿

(2009)
Spectrum sharing is an opportunistic strategy to improve the efficient usage of the frequency spectrum. Much of the research to quantify these gains are under the premise that the spectrum is being used inefficiently. Our ...
• #### Speeding Up Mobile Browsers without Infrastructure Support ﻿

(2012-09-05)
Mobile browsers are known to be slow. We characterize the performance of mobile browsers and find out that resource loading is the bottleneck. Leveraging an unprecedented set of web usage data collected from 24 iPhone users ...
• #### Sphere detection and LDPC decoding algorithms and architectures for wireless systems ﻿

(2008)
Ever increasing demand for high data rate wireless transmissions with high spectral efficiency leads to utilization of communication systems with multiple transmit and receive antennas. In addition, excellent error-rate ...
• #### Spline-based methods for acquisition of signal and image models ﻿

(1989)
In this thesis spline functions have been used to do data fitting for modeled signals. Optimum splines are obtained based on least squares error for the specific signal and image models. In the case of one-dimensional ...
• #### Spreading and power control for multiple antenna transmit diversity ﻿

(1999)
This thesis proposes a new transmission scheme for multiple antenna transmission at the base station of a wireless cellular system. We develop our new scheme in a wideband CDMA framework using multiple phases of Gold codes ...
• #### Stability and performance robustness of discrete-time systems with structured uncertainty ﻿

(1990)
The robustness of discrete-time systems in the presence of norm-bounded linear time-varying and/or nonlinear perturbations is addressed. A general framework for dealing with stability as well as performance robustness of ...
• #### Stabilization and throughput of spread spectrum multiple access systems with multiple reception capability ﻿

(1992)
The task of stabilizing communication networks sharing a spread spectrum channel is addressed. A slotted system is considered and the stabilization is achieved by controlling the number of packets that are transmitted in ...

(1973)

(1976)
• #### Statistical characterization of sensors for sensor fusion ﻿

(1996)
It is standard practice in advanced telerobotic systems to use a detailed model of the operating environment to plan tasks and drive simulations. How well these systems operate is highly dependent upon the accuracy of this ...

(1975)
• #### Structure of Knowledge Representation and Reasoning ﻿

(1988)
This thesis deals with one important aspect of Artificial Intelligence, knowledge representation and reasoning. Problems like knowledge representation hypothesis, production systems, and the proceduralist and declarativist ...
• #### Studies in system representation and control ﻿

(1995)
Representation of an abstract system by a mathematical object such as a matrix or a differential equation is important because much of the analysis is done via representations. For discrete-time input-output systems, ...
• #### Studies of an injection controlled rare gas halide excimer laser ﻿

(1988)
Characteristics of an injection-controlled electron-beam pumped XeF(C $\to$ A) excimer laser have been investigated with emphasis on efficient wideband tuning and scaling issues. Using a quasi-cw dye laser as an injection ...

(1972)
• #### Studies on capacity and performance of digital transmission over copper loops ﻿

(1995)
Digital transmission over copper loops is studied. Models are found of main sources of interference, including near-end crosstalk (NEXT), far-end crosstalk (FEXT), impulse noise (IN) and intersymbol interference (ISI). ...

(1978)

(1966)
• #### Sub-wavelength Metallic Ring Apertures for Communications, Sensing and Nonlinear Optics ﻿

(2013-11-06)
In this thesis, we demonstrate sub-wavelength ring aperture arrays in a metal film which can be used for communications, material sensing, and nonlinear optics. We show in simulation and experiment extraordinary optical ...