Electrical Communication Engineering (ECE): Recent submissions
Now showing items 301-320 of 470
-
Time-based All-Digital Technique for Analog Built-in Self Test
(2017-11-30)A scheme for Built-in-Self-Test (BIST) of analog signals with minimal area overhead, for measuring on-chip voltages in an all-digital manner is presented in this thesis. With technology scaling, the inverter switching times ... -
Design and Characterization of SRAMs for Ultra Dynamic Voltage Scalable (U-DVS) Systems
(2017-11-29)The ever expanding range of applications for embedded systems continues to offer new challenges (and opportunities) to chip manufacturers. Applications ranging from exciting high resolution gaming to routine tasks like ... -
Role of Channel State Information in Adaptation in Current and Next Generation Wireless Systems
(2017-11-24)Motivated by the increasing demand for higher data rates, coverage, and spectral efficiency, current and next generation wireless systems adapt transmission parameters and even who is being transmitted to, based on the ... -
Joint Estimation of Impairments in MIMO-OFDM Systems
(2017-11-16)The integration of Multiple Input Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM) techniques has become a preferred solution for the high rate wireless technologies due to its high spectral ... -
Belief Propagation and Algorithms for Mean-Field Combinatorial Optimisations
(2017-11-15)We study combinatorial optimization problems on graphs in the mean-field model, which assigns independent and identically distributed random weights to the edges of the graph. Specifically, we focus on two generalizations ... -
Exploration of Displacement Detection Mechanisms in MEMS Sensors
(2017-11-14)MEMS Sensors are widely used for sensing inertial displacements. The displacements arising out of acceleration /Coriolis effect are typically in the range of 1 nm-1 m. This work investigates the realization of high resolution ... -
Algorithms for Homogeneous Quadratic Minimization And Applications in Wireless Networks
(2017-11-09)Massive proliferation of wireless devices throughout world in the past decade comes with a host of tough and demanding design problems. Noise at receivers and wireless interference are the two major issues which severely ... -
Performance Analysis of Opportunistic Selection and Rate Adaptation in Time Varying Channels
(2017-11-09)Opportunistic selection and rate adaptation play a vital role in improving the spectral and power efficiency of current multi-node wireless systems. However, time-variations in wireless channels affect the performance of ... -
Interference Modeling in Wireless Networks
(2017-10-26)Cognitive radio (CR) networks and heterogeneous cellular networks are promising approaches to satisfy the demand for higher data rates and better connectivity. A CR network increases the utilization of the radio spectrum ... -
Classical Binary Codes And Subspace Codes in a Lattice Framework
(2017-10-10)The classical binary error correcting codes, and subspace codes for error correction in random network coding are two different forms of error control coding. We identify common features between these two forms and study ... -
Source And Channel Coding Techniques for The MIMO Reverse-link Channel
(2017-09-28)In wireless communication systems, the use of multiple antennas, also known as Multiple-Input Multiple-Output(MIMO) communications, is now a widely accepted and important technology for improving their reliability and ... -
Data Fusion Based Physical Layer Protocols for Cognitive Radio Applications
(2017-09-26)This thesis proposes and analyzes data fusion algorithms that operate on the physical layer of a wireless sensor network, in the context of three applications of cognitive radios: 1. Cooperative spectrum sensing via binary ... -
Bitrate Reduction Techniques for Low-Complexity Surveillance Video Coding
(2017-09-26)High resolution surveillance video cameras are invaluable resources for effective crime prevention and forensic investigations. However, increasing communication bandwidth requirements of high definition surveillance videos ... -
Energy Harvesting Wireless Sensor Networks : Performance Evaluation And Trade-offs
(2017-09-23)Wireless sensor networks(WSNs) have a diverse set of applications such as military surveillance, health and environmental monitoring, and home automation. Sensor nodes are equipped with pre-charged batteries, which drain ... -
Neuronal Dissimilarity Indices that Predict Oddball Detection in Behaviour
(2017-09-23)Our vision is as yet unsurpassed by machines because of the sophisticated representations of objects in our brains. This representation is vastly different from a pixel-based representation used in machine storages. It is ... -
Distributed Algorithms for Power Allocation Games on Gaussian Interference Channels
(2017-09-20)We consider a wireless communication system in which there are N transmitter-receiver pairs and each transmitter wants to communicate with its corresponding receiver. This is modelled as an interference channel. We propose ... -
Low Power And Low Spur Frequency Synthesizer Circuit Techniques For Energy Efficient Wireless Transmitters
(2017-09-07)There has been a huge rise in interest in the design of energy efficient wireless sensor networks (WSN) and body area networks (BAN) with the advent of many new applications over the last few decades. The number of sensor ... -
Fundamentals Limits Of Communication In Interference Limited Environments
(2017-08-21)In multiuser wireless communications, interference not only limits the performance of the system, but also allows users to eavesdrop on other users’ messages. Hence, interference management in multiuser wireless communication ... -
Optimal Amplify-And-Forward Relaying For Cooperative Communications And Underlay Cognitive Radio
(2017-08-21)Relay-assisted cooperative communication exploits spatial diversity to combat wireless fading, and is an appealing technology for next generation wireless systems. Several relay cooperation protocols have been proposed in ... -
Minimization Problems Based On A Parametric Family Of Relative Entropies
(2017-08-21)We study minimization problems with respect to a one-parameter family of generalized relative entropies. These relative entropies, which we call relative -entropies (denoted I (P; Q)), arise as redundancies under mismatched ...