Browsing Electrical Communication Engineering (ECE) by Title
Now showing items 361-380 of 381
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Transceiver Design Based on the Minimum-Error-Probability Framework for Wireless Communication Systems
(2018-06-19)Parameter estimation and signal detection are the two key components of a wireless communication system. They directly impact the bit-error-ratio (BER) performance of the system. Several criteria have been successfully ... -
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 ... -
True Random Number Generators based on Amplified Spontaneous Emission
Low-cost, high-speed quantum random number generators (QRNGs) are imperative to develop in order to have a widespread application in areas ranging from cryptography and stochastic simulations to banking and internet. ... -
A Two Step Optimal Decoding for PSK and Trellis Coded Modulation in Noisy Index Coding Problem
Index coding is a communication problem in which a server has a set of messages and wants to broadcast them to a set of receivers. Each receiver is interested in a single message, but some of the receivers may have some ... -
Ultrawideband and wide-angle scan antenna element and small active phased arrays
Wideband, wide-scan active phased arrays (APA) are widely used for multi-function radars, communication and electronic warfare. Although considerable research is available on the design and analysis of such antenna elements ... -
Underwater Acoustic Communications: Algorithms for Delay-Scale Spread Wideband Channels
In wideband wireless communication systems, the relative motion of the transmitter, receiver, or scatterers in the medium causes the Doppler effect, which stretches or compresses the transmitted waveforms, resulting in ... -
Van der Waals Heterojunctions for Emerging Device Applications
Low-dimensional systems are an exciting platform for exploring new physics and realizing novel devices. The intriguing features, such as the existence of strongly bound multiparticle complexes and thickness-dependent band ... -
Variability Aware Device Modeling and Circuit Design in 45nm Analog CMOS Technology
(2018-05-10)Process variability is a major challenge for the design of nano scale MOSFETs due to fundamental physical limits as well as process control limitations. As the size of the devices is scales down to improve performance, the ... -
Variational Bayes Algorithms for mmWave and Massive MIMO-OFDM Systems with Low Resolution ADCs
In this thesis, we develop novel low-complexity algorithms for massive multiple-input multiple-output (MIMO) systems under practical non-idealities and theoretically analyze their performance. The first problem we consider ... -
Vision-driven Tele-Operation for Robot Manipulation
It’s worth the time to acknowledge just how amazingly well we humans can perform tasks with our hands. Starting from picking up a coin to buttoning up our shirts. All these tasks for robots are still at the very forefront ... -
Who Spoke What And Where? A Latent Variable Framework For Acoustic Scene Analysis
(2016-09-15)Speech is by far the most natural form of communication between human beings. It is intuitive, expressive and contains information at several cognitive levels. We as humans, are perceptive to several of these cognitive ... -
Why only two ears? Some indicators from the study of source separation using two sensors
(Indian Institute of Science, 2005-02-10)In this thesis we develop algorithms for estimating broadband source signals from a mixture using only two sensors. This is motivated by what is known in the literature as cocktail party effect, the ability of human beings ... -
Wide-Band Radio-Frequency All-Pass Networks for Analog Signal Processing
(2018-01-10)There is an ever increasing demand for higher spectral usage in wireless communication, radar and imaging systems. Higher spectral efficiency can be achieved using components that are aware of system environment and adapt ... -
Wideband Microstrip Patch Antennas and their Modifications for Practical Applications
Printed antennas play an significant role in satellite, mobile, and other wireless communications networks, military systems and several more emerging applications in- cluding radar sensing and imaging. Several of these ... -
Wideband Rate Adaptation and Scheduling in OFDM Cellular Systems : Modeling, Analysis, and Base Station Side Estimation
Current and next generation wireless cellular systems strive to maximize spectral efficiency and meet the increasing demand for higher data rates despite being severely constrained by the limited availability of spectrum. ... -
Wireless Channel Modeling for Drone to Ground 2.4 GHz link
Use of Drones for communication is picking up the pace and expected to grow exponentially in the coming years. These drones will be used as access points for providing WiFi services in the near future. It is well known ... -
Wireless Content Centric Networks: Cross Layer Designs for Queueing, Caching, Power Control and Beamforming
Ever increasing user base of social media platforms such as Facebook, Youtube and the Over-the-Top platforms such as Netflix, Prime Video etc., has increased the demand for High Definition Videos/Contents over the Mobile ... -
WiROS: A QoS Software Solution for ROS2 in a WiFi Network
Robot Operating System (ROS) has played a pivotal role as a communication middleware among different peripherals, including sensors and actuators of robotics and other systems, with the advancement of connected systems ...