Browsing Electrical and Computer Engineering by Title
Now showing items 925-944 of 1970
-
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 ... -
Investigating Input Offset Reduction with Timing Manipulation in Low Voltage Sense Amplifiers
(University of Waterloo, 2021-02-18)Static Random Access Memories (SRAMs) are ubiquitous in modern computer systems. They provide a fast and relatively compact method of data storage. SRAM cells are read from and written to using analog differential bitline ... -
Investigating Polynomial Fitting Schemes for Image Compression
(University of Waterloo, 2009-01-26)Image compression is a means to perform transmission or storage of visual data in the most economical way. Though many algorithms have been reported, research is still needed to cope with the continuous demand for more ... -
Investigating the Causes of the Lower Electroluminescence Stability of OLEDs with Solution-Coated versus Vacuum-Deposited Host:Guest Systems
(University of Waterloo, 2023-08-22)Organic light-emitting devices (OLEDs) are increasingly being used in commercial flat display products from mobile phones and smart watches to televisions. Although OLEDs have become a recognizable product to consumers ... -
Investigating the Effect of ZnO Modifications on the Electroluminescence Stability of Quantum-dot Light Emitting Devices and the Underlying Factors
(University of Waterloo, 2023-08-18)Quantum dots (QDs) have garnered significant attention as promising materials for next-generation flat panel displays due to their unique luminescence properties. These properties, such as an impressive photoluminescence ... -
Investigating the Factors Governing the Efficiency and the Electroluminescence Stability in Simplified Phosphorescent Organic Light-Emitting Devices Utilizing One Material for Both Hole Transport and Emitter Host
(University of Waterloo, 2013-12-12)Organic Light-Emitting Devices (OLEDs) have reached industrial maturity in display technology, since OLEDs provide salient advantages such as high brightness, fast response, wide viewing angle, mechanical flexibility, and ... -
Investigating the Influence of Electron Extraction Layers on the Photostability of Inverted Organic Solar Cells
(University of Waterloo, 2021-09-27)Decades of active research on organic solar cells (OSCs) have recently led to a significant increase in their power conversion efficiency (PCE). However, large-scale commercialization of the technology has not yet been ... -
Investigation into Photon Emissions as a Side-Channel Leakage in Two Microcontrollers: A Focus on SRAM Blocks
(University of Waterloo, 2023-08-29)Microcontrollers are extensively utilized across a diverse range of applications. However, with the escalating usage of these devices, the risk to their security and the valuable data they process correspondingly intensifies. ... -
Investigation of Channel Reciprocity for OFDM TDD Systems
(University of Waterloo, 2009-10-02)This dissertation investigates the assumption of channel reciprocity in orthogonal frequency division multiplexing (OFDM) systems using time-division duplex (TDD) access. Within TDD systems uplink and downlink transmission ... -
Investigation of charge-exciton interactions and their correlations with the device efficiency and operational stability in Phosphorescent Organic Light Emitting Devices by studying delayed electroluminescence
(University of Waterloo, 2013-09-11)Phosphorescent OLEDs (PHOLEDs) have gained a lot of attention due to their remarkable capability of achieving nearly 100% internal quantum efficiency. Although PHOLEDs are a promising technology for the development of high ... -
Investigation of Current Sensing Using Inherent Resistance
(University of Waterloo, 2010-05-20)A novel method of current sensing using resistance of power delivery path is introduced as a mean to measure static or dynamic load current in high-power system-on-chips, where conventional methods deemed inadequate. It ... -
Investigation of Electroluminescence Degradation in Anthracene-based Organic Light-Emitting Devices
(University of Waterloo, 2010-09-29)Organic light-emitting devices (OLEDs) have attracted significant attention because of their unique advantages for flat panel display applications. However, the relatively limited electroluminescence (EL) stability of blue ... -
Investigation of High Frequency Switching Transients on Wind Turbine Step Up Transformers
(University of Waterloo, 2015-09-28)Pre-mature failures of wind turbine step up (WTSU) transformers have been reported in the wind farms although, the failed transformers had previously passed all quality assurance tests and had assembled all standard ... -
Investigation of MoO3 as an electron injection contact and as a charge transport material in transparent organic light emitting devices
(University of Waterloo, 2011-08-24)MoO3 is investigated for its utilization as a transparent cathode and as a charge transport material in transparent organic light emitting devices. As a transparent cathode, MoO3 is utilized in combination with a thin metal ... -
Investigation of RF Direct Detection Architecture Circuits for Metamaterial Sensor Applications
(University of Waterloo, 2011-01-19)Recent advances in metamaterials research has enabled the development of highly sensitive near-field microwave sensors with unprecedented sensitivity. In this work, we take advantage of the increase in the sensitivity to ... -
Investigation of Time Domain Modulation and Switching-Mode Power Amplifiers Suitable for Digitally-Assisted Transmitters
(University of Waterloo, 2010-09-22)Innovation in wireless communication has resulted in accelerating demand for smartphones using multiple communications protocols such as WiFi, Bluetooth and the many cellular standards deployed around the world. The variety ... -
An Investigation on Passive Inter-Modulation generated by antenna contact
(University of Waterloo, 2017-09-06)In modern day handheld cellular devices, low-profile is a key design target. In addition, with the introduction of 4G protocols, the number of cellular bands has increased significantly and the simultaneous transmission ... -
Investigation on performance enhancement of micro-sized IR photodetectors
(University of Waterloo, 2021-09-16)As an Infrared detector with high responsivity, high transmission speed, and low dark current, InP/InGaAs p-i-n photodetectors (PD) have been used as a promising technology for many applications, including optical communication ... -
Investigation on the Compress-and-Forward Relay Scheme
(University of Waterloo, 2012-01-20)The relay channel plays an integral role in network communication systems. An intermediate node acts as a relay to facilitate the communication between the source and the destination. If the rate of codewords is less than ... -
Investigations into Impedance Tuners for the Next Generation of Communication Systems
(University of Waterloo, 2023-01-03)Novel communication systems, including 5G and the upcoming 6G cellular networks and software defined/cognitive radio technologies, call for compact, multi-band, and reconfigurable circuit components. Specifically, stringent ...