Browsing Electrical and Computer Engineering by Title
Now showing items 493-512 of 1977
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Diversity Techniques in Free-Space Optical Communications
(University of Waterloo, 2012-01-23)Free-space optical (FSO) communication offers significant technical and operational advantages such as higher bandwidth capacity, robustness to electromagnetic interference, a high degree of spatial confinement (bringing ... -
A Doherty Power Amplifier with Extended Bandwidth and Reconfigurable Back-off Level
(University of Waterloo, 2013-03-22)Emerging wireless standards are designed to be spectrally efficient to address the high cost of licensing wireless spectra. Unfortunately, the resulting signals have a high peak-to-average ratio that reduces the base station ... -
Domain Knowledge Guided Testing and Training of Neural Networks
(University of Waterloo, 2021-08-26)The extensive impact of Deep Neural Networks (DNNs) on various industrial applications and research areas within the last decade can not be overstated. However, they are also subject to notable limitations, namely their ... -
Double Layer Formation and Cation Pseudo-Intercalation Supercapacitor Carbon Nanotube Composite Electrodes With Enhanced Electrochemical Performances
(University of Waterloo, 2015-01-16)Among electrochemical energy storage solutions, redox-free supercapacitors exhibit the highest power densities and best cycle life, easily reaching over one million cycles. Despite these attributes, Li-ion batteries are ... -
Driving Manoeuvre Recognition using Mobile Sensors
(University of Waterloo, 2016-08-31)Automobiles are integral in today's society as they are used for transportation, commerce, and public services. The ubiquity of automotive transportation creates a demand for active safety technologies for the consumer. ... -
Dual Conditions for Local Transverse Feedback Linearization
(IEEE, 2019-01-21)Given a control-affine system and a controlled invariant submanifold, the local transverse feedback linearization problem is to determine whether or not the system is locally feedback equivalent to a system whose dynamics ... -
Dual-band Power Amplifier for Wireless Communication Base Stations
(University of Waterloo, 2012-08-30)In wireless communication systems, multiple standards have been implemented to meet the past and present demands of different applications. This proliferation of wireless standards, operating over multiple frequency bands, ... -
Duality relations in finite queueing models
(University of Waterloo, 2013-08-21)Motivated by applications in multimedia streaming and in energy systems, we study duality relations in fi nite queues. Dual of a queue is de fined to be a queue in which the arrival and service processes are interchanged. ... -
Duetto: Latency Guarantees at Minimal Performance Cost
(IEEE Design, Automation and Test in Europe Conference (DATE), 2021-02-05)The management of shared hardware resources in multi-core platforms has been characterized by a fundamental trade-off: high-performance arbiters typically employed in COTS systems offer no worst-case guarantees, while ... -
DuoMC: Tight DRAM Latency Bounds with Shared Banks and Near-COTS Performance
(ACM International Symposium on Memory Systems (MEMSYS 2021), 2021-09-27)DRAM memory controllers (MCs) in COTS systems are designed primarily for average performance, offering no worst-case guarantees, while real-time MCs provide timing guarantees at the cost of a significant average performance ... -
Dynamic Balance and Gait Metrics for Robotic Bipeds
(University of Waterloo, 2019-06-19)For legged robots to be useful in the real world, they must be able to balance and walk reliably. Both of these abilities improve when a system is more effective at moving itself around relative to its contacts (i.e., ... -
A Dynamic Control Approach to Modeling and Analysing the Effects of Rewards on Behaviour and Attitude Change
(University of Waterloo, 2010-09-28)Motivated by the dynamic feedback nature of human attitudes and behaviours, this work adopts a control systems engineering approach to studying a psychological system. In particular, two discrete-time nonlinear attitude-behaviour ... -
Dynamic HW/SW Partitioning: Configuration Scheduling and Design Space Exploration
(University of Waterloo, 2007-05-18)Hardware/software partitioning is a process that occurs frequently in embedded system design. It is the procedure of determining whether a part of a system should be implemented in software or hardware. This dissertation ... -
Dynamic Laser Fault Injection Aided by Quiescent Photon Emissions in Embedded Microcontrollers: Apparatus, Methodology and Attacks
(University of Waterloo, 2020-07-27)Internet of Things (IoT) is becoming more integrated in our daily life with the increasing number of embedded electronic devices interacting together. These electronic devices are often controlled by a Micro-Controller ... -
Dynamic Memory Bandwidth Allocation for Real-Time GPU-Based SoC Platforms
(University of Waterloo, 2020-05-20)Heterogeneous SoC platforms, comprising both general purpose CPUs and accelerators such as a GPU, are becoming increasingly attractive for real-time and mixed-criticality systems to cope with the computational demand of ... -
Dynamic Modelling and Performance Analysis of Energy Storage Systems for Frequency Regulation in Bulk Power Systems
(University of Waterloo, 2021-09-21)Renewable Energy Sources (RESs) provide a feasible alternative to supply electrical loads without the unfavorable environmental impacts of fossil fuels. However, despite the significant environmental benefits of RESs, several ... -
Dynamic path following controllers for planar mobile robots
(University of Waterloo, 2011-10-27)In the field of mobile robotics, many applications require feedback control laws that provide perfect path following. Previous work has shown that transverse feedback linearization is an effective approach to designing ... -
Dynamic Resource Provisioning and Scheduling in SDN/NFV-Enabled Core Networks
(University of Waterloo, 2020-12-17)The service-oriented fifth-generation (5G) core networks are featured by customized network services with differentiated quality-of-service (QoS) requirements, which can be provisioned through network slicing enabled by ... -
A Dynamic Scratchpad Memory Unit for Predictable Real-Time Embedded Systems
(University of Waterloo, 2013-01-17)Scratch-pad memory is a popular alternative to caches in real-time embedded systems due to its advantages in terms of timing predictability and power consumption. However, dynamic management of scratch-pad content is ... -
Dynamic Time-Stable Geocast Routing in Vehicular Ad Hoc Networks
(University of Waterloo, 2010-01-22)Vehicular ad hoc networks (VANETs) have emerged as an area of interest for both industry and research scholars because they have become an essential part of intelligent transportation systems (ITSs). Many applications in ...