Browsing Electrical and Computer Engineering by Issue Date
Now showing items 21-40 of 1969
-
Scalable Multiple Description Coding and Distributed Video Streaming over 3G Mobile Networks
(University of Waterloo, 2003)In this thesis, a novel Scalable Multiple Description Coding (SMDC) framework is proposed. To address the bandwidth fluctuation, packet loss and heterogeneity problems in the wireless networks and further enhance the ... -
High Performance Elliptic Curve Cryptographic Co-processor
(University of Waterloo, 2003)In FIPS 186-2, NIST recommends several finite fields to be used in the elliptic curve digital signature algorithm (ECDSA). Of the ten recommended finite fields, five are binary extension fields with degrees ranging ... -
Linear MMSE Receivers for Interference Suppression & Multipath Diversity Combining in Long-Code DS-CDMA Systems
(University of Waterloo, 2003)This thesis studies the design and implementation of a linear minimum mean-square error (LMMSE) receiver in asynchronous bandlimited direct-sequence code-division multiple-access (DS-CDMA) systems that employ long-code ... -
A New Segmentation Algorithm for Prostate Boundary Detection in 2D Ultrasound Images
(University of Waterloo, 2003)Prostate segmentation is a required step in determining the volume of a prostate, which is very important in the diagnosis and the treatment of prostate cancer. In the past, radiologists manually segment the two-dimensional ... -
Wavelet Filter Banks in Perceptual Audio Coding
(University of Waterloo, 2003)This thesis studies the application of the wavelet filter bank (WFB) in perceptual audio coding by providing brief overviews of perceptual coding, psychoacoustics, wavelet theory, and existing wavelet coding algorithms. ... -
A Scalable, Secure, and Energy-Efficient Image Representation for Wireless Systems
(University of Waterloo, 2004)The recent growth in wireless communications presents a new challenge to multimedia communications. Digital image transmission is a very common form of multimedia communication. Due to limited bandwidth and broadcast ... -
A Lightweight Processor Core for Application Specific Acceleration
(University of Waterloo, 2004)Advances in configurable logic technology have permitted the development of low-cost, high-speed configurable devices, allowing one or more soft processor cores to be introduced into a configurable computing system. ... -
Achieving Scalable, Exhaustive Network Data Processing by Exploiting Parallelism
(University of Waterloo, 2004)Telecommunications companies (telcos) and Internet Service Providers (ISPs) monitor the traffic passing through their networks for the purposes of network evaluation and planning for future growth. Most monitoring ... -
MEMS Actuation and Self-Assembly Applied to RF and Optical Devices
(University of Waterloo, 2004)The focus of this work involves optical and RF (radio frequency) applications of novel microactuation and self-assembly techniques in MEMS (Microelectromechanical systems). The scaling of physical forces into the micro ... -
Soft Handoff in MC-CDMA Cellular Networks Supporting Multimedia Services
(University of Waterloo, 2004)An adaptive resource reservation and handoff priority scheme, which jointly considers the characteristics from the physical, link and network layers, is proposed for a packet switching Multicode (MC)-CDMA cellular network ... -
Multi-interface Multi-channel wireless mesh networks
(University of Waterloo, 2004)In this thesis we propose a multi-channel wireless network based on nodes that use multiple 802. 11 radio interfaces. The proposed system is singular, as it does not require new hardware or a new MAC, but instead ... -
Linear Macro-Micro Positioning System Using a Shape Memory Alloy Actuator
(University of Waterloo, 2004)The use of high-precision automated equipment is steadily increasing due in part to the progressively smaller sizes of electronic circuits. Currently, piezoelectric transducers (piezos) dominate as the actuation device ... -
Bottom-Gate TFTs With Channel Layer Deposited by Pulsed PECVD
(University of Waterloo, 2004)Nanocrystalline silicon (nc-Si:H) is a promising material for Thin-Film Transistors (TFTs) offering potentially higher mobilities and improved stability over hydrogenated amorphous silicon (a-Si:H). The slow growth rate ... -
The Human Immune System: A Challenging Control Problem
(University of Waterloo, 2004)This work deals with the control of the human immune system. A standard immune system model is modified by introducing control signals corresponding to drug cocktail and immune suppressor treatments. The ultimate ... -
Low Power Register Exchange Viterbi Decoder for Wireless Applications
(University of Waterloo, 2004)Since the invention of wireless telegraphy by Marconi in 1897, wireless technology has not only been enhanced, but also has become an integral part of our everyday lives. The first wireless mobile phone appeared around ... -
An Automated Malignant Tumour Localization Algorithm for Prostate Cancer Detection in Trans-rectal Ultrasound Images
(University of Waterloo, 2004)The goal of this thesis is to design, implement and evaluate an automated algorithm to detect cancerous tissues and segment the malignant tumour in ultrasound images of the prostate. To accomplish this goal, first, the ... -
A Framework for Next Generation Enterprise Application Integration
(University of Waterloo, 2004)In addition to storing 70-75% of their data and business logic in legacy mainframe systems, global corporations have countless custom applications and off-the-shelf ERP products residing within their networks. Increasing ... -
Fabrication of Novel Suspended Inductors
(University of Waterloo, 2004)With the rapid growth in the wireless industry there has been increasing demand to make devices with better performance. This means lower power, lower voltage, smaller, and in general more efficient. This has lead ... -
On The Engineering of a Stable Force-Directed Placer
(University of Waterloo, 2004)Analytic and force-directed placement methods that simultaneously minimize wire length and spread cells are receiving renewed attention from both academia and industry. However, these methods are by no means trivial to ... -
Invariance Properties and Performance Evaluation of Bit Decoding Algorithms
(University of Waterloo, 2004)Certain properties of optimal bitwise APP (A Posteriori Probability) decoding of binary linear block codes are studied. The focus is on the Probability Density Function (<i>pdf</i>) of the bit Log-Likelihood-Ratio ...