Browsing Electrical Communication Engineering (ECE) by Title
Now showing items 365-384 of 518
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Precoding and Channel Estimation Schemes for MIMO VLC Systems
Increase in the usage of smartphones and growing demand for data have resulted in congestion in the RF spectrum. To ease the overcrowding of RF spectrum, there is a need for wireless communication systems that can ... -
Precoding for Interference Management in Wireless and Wireline Networks
(2018-02-27)Multiple users compete for a common resource like bandwidth to communicate data in interference networks. Existing approaches in dealing with interference limit the rate of communication due to paucity of shared resources. ... -
Privacy in Information Retrieval, Delivery and Distributed Computing
The aim of our work is to address the challenges of privacy in information retrieval, information delivery, and in distributed computing systems. We focus on reducing the download and upload costs and decreasing the ... -
Probabilistic Forwarding of Coded Packets for Broadcasting over Networks
Motivated by applications in sensor networks and the Internet of Things (IoT), in this dissertation, we consider the problem of energy-efficient broadcasting from a source node in a large dense network. Flooding, as a ... -
Process Variability-Aware Performance Modeling In 65 nm CMOS
(2011-02-25)With the continued and successful scaling of CMOS, process, voltage, and temperature (PVT), variations are increasing with each technology generation. The process variability impacts all design goals like performance, ... -
Programmable nonlinear ADCS -some new techniques
New Program mable Successive Approximation NADCs In this class of NADCs, the main emphasis has been to achieve digital programmability by using optimal-sized ROM, or PLS in the successive approximation loop while at the ... -
Propagation model and antennas for microcellular mobile communication / by Rajanish
To set up an efficient wireless mobile communication system, it is necessary to characterize the environment and its components, in particular suitable antennas, and hence explore its RF requirements. Presented in this ... -
Providing QoS To Real-time And Data Applications In 3G Wireless Systems
(2010-07-29)In this thesis we address the problem of providing end-to-end quality of service (QoS) to real-time and data connections in a third generation (3G) cellular network based on the Universal Mobile Telecommunication System ... -
QoS Aware Quorumcasting Over Optical Burst Switched Networks
(2010-10-11)Recently there is an emergence of many Internet applications such as multimedia, video conferencing, distributed interactive simulations (DIS), and high-performance scientific computations like Grid computing. These ... -
Quantitative Nonlinear Optical Microscopy with Applications in Nanostructure Imaging and Cancer Biology
Quantitative Nonlinear Optical Microscopy with Applications in Nanostructure Imaging and Cancer Biology Abstract: Nonlinear optical microscopy is a powerful imaging technique that has been used for imaging for diverse ... -
Quantum Algorithmic Engineering with Photonic Integrated Circuits
(2018-04-24)Integrated quantum photonics show monolithic waveguide chips to be a promising platform for realizing the next generation of quantum optical circuits. This work proposes the implementation of quantum page Rank algorithm ... -
Rate-Distortion Performance And Complexity Optimized Structured Vector Quantization
(2011-02-09)Although vector quantization (VQ) is an established topic in communication, its practical utility has been limited due to (i) prohibitive complexity for higher quality and bit-rate, (ii) structured VQ methods which are not ... -
Ray Chaos In Underwater Acoustics
(2013-01-24) -
Real-Time Status Updates Over Erasure Channels
Real-time decision making relies on the availability of accurate data and, as such, delivering status updates in a timely fashion is of paramount importance. In this thesis, we first look at the interplay between average ... -
Reduced Feedback Schemes in 4g/5g Ofdm Systems: Modeling, Performance Analysis and Redesign
Reduced feedback schemes are a crucial component of orthogonal frequency division multiplexing-based 4G and 5G cellular systems that use downlink scheduling, adaptive modulation and coding, and multiple-input-multiple-output ... -
Reinforcement Learning in Large and Structured Environments
In a reinforcement learning (RL) problem, a learner takes actions to control the state of an initially unknown environment so as to maximize the sum of the rewards he obtains. This has several applications in many practical ... -
Relative efficiencies of devanagari and tamil scripts for reading
This thesis is devoted primarily to some of the problems involved in reading with particular emphasis on Devanagari and Tamil scripts. Scripts are considered as codes and their performance examined on the basis of information ... -
Relay Selection for Geographical Forwarding in Sleep-Wake Cycling Wireless Sensor Networks
(2018-04-11)Advances in wireless communication and microelectronics have led to the development of low-power compact sensor nodes (popularly called motes) that are capable of sensing, computing, and communication. A large number of ... -
Remedies for Different Impairments in Orthogonal Time Frequency Space Systems
Embargo up to 15/7/2026 Orthogonal time frequency space (OTFS) has emerged as a promising multiplexing tech nique for future wireless communications. In OTFS-based systems, the information symbols are represented in a ... -
Resonant Metasurfaces for Mid-Infrared Photonics
The field of photonics offers a robust platform for efficient light-based technologies, directly impacting or serving as competent alternatives to address scientific problems. With the advent and advancement of micro-nano ...