Browsing Electrical and Computer Engineering by Title
Now showing items 726-745 of 1897
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H-Infinity Performance Limitations for Problems with Sensor Time Delays
(University of Waterloo, 2008-01-23)Motivated by ongoing research into automating radiotherapy, this thesis is concerned with linear feedback control and estimation problems where only a delayed output signal is measurable. Various discrete-time performance ... -
Haptic Training Simulator for Pedicle Screw Insertion in Scoliosis Surgery
(University of Waterloo, 2015-02-20)This thesis develops a haptic training simulator that imitates the sensations experienced by a surgeon in pedicle screw insertions in a scoliosis surgery. Pedicle screw insertion is a common treatment for fixing spinal ... -
HARDI Denoising using Non-local Means on the ℝ³ x 𝕊² Manifold
(University of Waterloo, 2012-01-05)Magnetic resonance imaging (MRI) has long become one of the most powerful and accurate tools of medical diagnostic imaging. Central to the diagnostic capabilities of MRI is the notion of contrast, which is determined by ... -
Hardware Implementation of a High Speed Deblocking Filter for the H.264 Video Codec
(University of Waterloo, 2012-04-25)H.264/MPEG-4 part 10 or Advanced Video Coding (AVC) is a standard for video compression. MPEG-4 is currently one of the most widely used formats for recording, compression and distribution of high definition video. One ... -
Hardware Implementation of Barrett Reduction Exploiting Constant Multiplication
(University of Waterloo, 2019-10-01)The efficient realization of an Elliptic Curve Cryptosystem is contingent on the efficiency of scalar multiplication. These systems can be improved by optimizing the underlying finite field arithmetic operations which are ... -
Hardware Implementation of Fixed-Point Decoder for Low-Density Lattice Codes
(University of Waterloo, 2022-04-29)Low-density lattice codes (LDLCs) are a special class of lattice codes that can be decoded efficiently using iterative decoding and approach the capacity of the additive white Gaussian noise (AWGN) channel. The construction ... -
Hardware Implementation of Soft Computing Approaches for an Intelligent Wall-following Vehicle
(University of Waterloo, 2007-05-18)Soft computing techniques are generally well-suited for vehicular control systems that are usually modeled by highly nonlinear differential equations and working in unstructured environment. To demonstrate their applicability, ... -
Hardware Implementations of the Lightweight Welch-Gong Stream Cipher Family using Polynomial Bases
(University of Waterloo, 2019-01-28)In this thesis we develop a parametrized generic hardware implementation for the Welch-Gong (WG) stream cipher family for low power and low cost applications. WG stream ciphers operate over finite fields, and are comprised ... -
Hardware Implementations of the WG-16 Stream Cipher with Composite Field Arithmetic
(University of Waterloo, 2014-09-22)The WG stream cipher family consists of stream ciphers based on the Welch-Gong (WG) transformations that are used as a nonlinear filter applied to the output of a linear feedback shift register (LFSR). The aim of this ... -
Hardware-Aware Precoding and Digital Predistortion for Massive MIMO Transmitters
(University of Waterloo, 2022-05-19)To cope with the ever-increasing demand for higher data rates, reduced latency, and improved coverage, new technologies are needed to advance the current state of wireless communication systems. One of the promising new ... -
A Hardware/Software Fuel Gauge Analog-to-Digital Converter Solution for Mobile Electronics Applications
(University of Waterloo, 2015-10-22)Power consumption is one of the key considerations in any mobile electronics design. As technology roadmaps advance in the mobile and wearable markets, there will be an evident push for lower power consumption in terms of ... -
A Hash-Chain Based Method for Full or Partial Authentication of Communication in a Real-Time Wireless Environment
(University of Waterloo, 2010-06-25)Real-time media streams are a common application on the Internet today. For many such streams, it is necessary to provide authentication, data integrity, and non-repudiation. Some applications where this type of security ... -
Header Parsing Logic in Network Switches Using Fine and Coarse-Grained Dynamic Reconfiguration Strategies
(University of Waterloo, 2014-04-29)Current ASIC only designs which interface with a general purpose processor are fairly restricted as far as their ability to be upgraded after fabrication. The primary intent of the research documented in this thesis is ... -
Heavy-tail Sensitivity of Stable Portfolios
(University of Waterloo, 2010-08-31)This thesis documents a heavy-tailed analysis of stable portfolios. Stock market crashes occur more often than is predicted by a normal distribution,which provides empirical evidence that asset returns are heavy-tailed. ... -
Hedging in a Financial Market with Regime-Switching
(University of Waterloo, 2021-10-06)It is well-known that in the complete standard financial market model driven solely by Brownian motion, one can always hedge a given contingent claim starting from an appropriate initial wealth. In other words, there always ... -
Heterogeneous Cellular Networks: From Resource Allocation To User Association
(University of Waterloo, 2015-04-27)Heterogeneous networking paradigm addresses the ever growing need for capacity and coverage in wireless networks by deploying numerous low power base stations overlaying the existing macro cellular coverage. Heterogeneous ... -
Heterojunction Photovoltaic Devices With Rapid Thermally Annealed Crystalline Thin Films
(University of Waterloo, 2015-05-07)Rapid thermal annealing (RTA) is a low thermal budget high throughput method of crystallizing hydrogenated amorphous (a-Si:H) silicon films. This thesis had three principal goals: 1) to fabricate heterojunction solar cells ... -
Heterojunction Quantum Dot Solar Cells
(University of Waterloo, 2016-08-18)The advent of new materials and application of nanotechnology has opened an alternative avenue for fabrication of advanced solar cell devices. Before application of nanotechnology can become a reality in the photovoltaic ... -
High Aspect Ratio Polystyrene Structure and Nano-gap Electrode Fabrication Using Electron Beam Lithography
(University of Waterloo, 2017-06-22)Nanotechnology has experienced a rapid growth over the past decade, thanks to the development of nanofabrication technologies needed to fabricate nano-devices. The key technique for nanofabrication is nano-lithography. ... -
High Efficiency CMOS Power Amplifiers for Drain Modulation Based RF Transmitters
(University of Waterloo, 2010-01-27)The rapid evolution of wireless communication technologies increased the need for handheld devices that can support dissimilar standards or better user mobility and more battery life. Traditional radio architectures fail ...