Electrical Communication Engineering (ECE): Recent submissions
Now showing items 121-140 of 383
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Spatial Analysis and Reconstruction of Reverberant Speech
Speech signal includes the spoken message and a lot more information such as speaker emotion, identity, language, speaking location characteristic etc., which makes the human interaction lively, desirable and more useful. ... -
A Method of Designing Museum Services Handling System for Ubiquitous Visitors
Advances in mobile computing technologies have enabled the personal ubiquitous computing environment for ubiquitous visitors. In the case of museum services, a ubiquitous visitor is free to access his/her interested exhibit ... -
Efficient Transceiver Techniques for Media-based Modulation Systems
Conventionally, information bits are conveyed in a communication system by transmitting symbols from a complex modulation alphabet such as QAM or PSK. The wireless fading channel is viewed as a signal distorting medium ... -
Transmit Antenna Selection in Underlay Spectrum Sharing: Role of Power Adaptation, Interference Constraint, and Channel State Information
Spectrum sharing is essential to support high wireless data rates and a large number of wireless connections by the future technologies in the limited spectrum that is available. In underlay spectrum sharing a secondary ... -
Insights into Network Coding Using Tools From Linear Algebra and Matroid Theory
Traditionally, the transmission of information through a network was carried out using store-and-forward techniques. This entails managing information bits in a network analogous to commodity flow, without mixing or combining ... -
Design and Analysis of Integrated Optic Waveguide Grating for Sensor and Communication Applications
Waveguide gratings are widely being used for multitude of applications owing to high sensitivity, immunity to electromagnetic interference, multiplexing capabilities, light weight and compactness. Waveguide gratings on ... -
On Orthogonal Time Frequency Space Modulation for Wireless Communications
Future wireless communication systems are envisioned to support diverse requirements that include high mobility application scenarios such as high-speed trains, and vehicle-to-vehicle and vehicle-toinfrastructure communications. ... -
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 ... -
Functional Safety Analysis Techniques for Integrated Circuits Used in Cyber-Physical Systems
Integrated Circuits (ICs) are used to realize multitude of real life systems. These real life systems have ICs interacting with physical systems (this combination being referred to as cyber-physical systems or hybrid ... -
Investigation of Multi-Axis Beam Steering using Diffraction Grating
Optical beam-steering is becoming a key optical functionality in free space optical links used for communication and sensing. For example, in recent times, compact, wide-angle, fast, multi-axis beam steering is used ... -
On Linear Codes in Projective Spaces
The projective space $\mathbb{P}_q(n)$ of order $n$ over a finite field $\mathbb{F}_q$ is defined as the collection of all subspaces of the ambient space $\mathbb{F}_q^n$. The Grassmannian $\mathcal{G}_q(n, k)$ is the set ... -
Load Modulated Arrays for Multi-antenna Wireless Communications
Conventional multi-antenna transmitters use a separate RF chain (consisting of DACs, mixers, filters) and a power amplifier (PA) for each antenna element, and use modulation alphabets such as QAM/PSK for transmission. The ... -
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 ... -
Designing Solutions to Some of the Issues in Ubiquitous Networks
The inception of ubiquitous computing goes back to late eighties, when the Research at the Xerox Palo Alto Research (PARC) started designing ubiquitous environment under the guidance of Mark Weiser. Ubiquitous computing ... -
0.5V Subthreshold Region Operated Ultra Low Power Passive Sigma Delta ADC in 180 NM CMOS Technology
With increasing demand of IoT devices, medical devices, remote sensors; the design of low power analog interface is becoming focus. Generally, for low frequency applications the Sigma Delta ADCs are used due to their very ... -
Integrated Optic Microring Resonator based Sub-μN force and Force and Acceleration Sensors
Microring resonators have rapidly emerged in the past few years as a new sensing platform for miniaturization of modern integrated optical devices. Ring resonator are having advantages of compactness, stability with ... -
Fiber Bragg Grating Sensor Based Devices for Novel Biomedical Applications
The present thesis work comprises of design and development of devices based on Fiber Bragg Grating (FBG) sensors for novel biomedical applications. Here, novel packaging methodologies have been utilized for transduction ... -
Machine Learning Algorithms Using Classical And Quantum Photonics
ABSTRACT In the modern day , we are witnessing two complementary trends, exponential growth in data and shrinking of chip size. The Data is approaching to 44 zettabytes by 2020 and the chips are now available with 10nm ... -
High-rate MSR Codes, Interior-point Regenerating Codes, and Codes with Hierarchical Locality
Given the breath-taking pace at which the amount of data being generated on a daily basis is growing, and the keen desire to extract information from this data, there is strong interest within the storage industry, at ... -
Joint Spectro-Temporal Analysis of Moving Acoustic Sources
Signals generated by fast moving acoustic sources are both challenging for analysis as well as rich in information. The motion is conceptually relative between the source and receiver i.e., either one of them is moving or ...