Browsing Department of Electrical and Computer Engineering Graduate Theses by Author "Yousefi, Shahram"
Now showing items 1-15 of 15
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Belief Propagation Decoding of Finite-Length Polar Codes
Rajaie, Tarannom (2012-02-01)Polar codes, recently invented by Arikan, are the first class of codes known to achieve the symmetric capacity for a large class of channels. The symmetric capacity is the highest achievable rate subject to using the binary ... -
Design and Implementation of Modern Control Algorithms for Unmanned Aerial Vehicles
Kamal El-Din Hafez, Ahmed (2014-12-17)Recently, Unmanned Aerial Vehicles (UAVs) have attracted a great deal of attention in academic, civilian and military communities as prospective solutions to a wide variety of applications. The use of cooperative UAVs ... -
Fountain Codes for Fault Tolerance in Distributed Storage Systems
Okpotse, ToritsejuModern data storage systems are typically built using hard drives and other components that are prone to failure. The financial, operational and legal impact of data loss is usually quite high, particularly for owners of ... -
Improving the Left Degree Distribution of Fountain Codes in the Finite-Length Regime
Hayajneh, Khaled (2013-08-22)Fountain codes were introduced to provide higher reliability, lower complexities, and more scalability for networks such as the Internet. In this thesis, we study Luby- Transform (LT) codes which are the realization of ... -
Iterative joint detection and decoding of LDPC-Coded V-BLAST systems
Tsai, Meng-Ying (Brady) (2008-07-10)Soft iterative detection and decoding techniques have been shown to be able to achieve near-capacity performance in multiple-antenna systems. To obtain the optimal soft information by marginalization over the entire ... -
Linear Hyperspectral Unmixing Using L0-norm Approximations and Nonnegative Matrix Factorization
Esmaeili Salehani, Yaser (2016-10-05)Spectral unmixing (SU) is a technique to characterize mixed pixels of the hyperspectral images measured by remote sensors. Most of the existing spectral unmixing algorithms are developed using the linear mixing models. ... -
Low-Complexity Soliton-like Network Coding for a Resource-Limited Relay
Liau, Andrew (2011-10-11)Network coding (NC) is an optimal data dissemination technique where intermediate nodes linearly combine incoming packets. To recover a network-coded message, a sink must use a Gaussian elimination decoder, but this ... -
A new generic maximum-likelihood metric expression for space-time block codes with applications to decoding
Leuschner, Jeff (2007-08-21)Space-time block coding is a technique used to exploit diversity in a multiple-input multiple-output (MIMO) environment. Orthogonal space-time block codes (OSTBCs) are desirable because they can achieve full transmit ... -
Overlapped Fountain Coding: Design and Analysis
Hayajneh, KhaledThe concept of fountain codes has gained considerable attention in the past few years due to its simplicity, reliability, and feasibility. Nowadays, fountain codes are used in many applications including, but not limited ... -
Rateless Coding for Single-Source Networks with Common Information
Modiri, Arghavan (2015-06-03)In this thesis, we consider the communication problem of a single source simultaneously transmitting to multiple receivers whose sets of requested messages overlap. For decades, one of the challenges in this broadcast ... -
A Reinforcement Learning Approach to Predictive Control Design: Autonomous Vehicle Applications
Jardine, PeterThis research investigates the use of learning techniques to select control parameters in the Model Predictive Control (MPC) of autonomous vehicles. The general problem of having a vehicle track a target while adhering to ... -
Reliability-based Detection of Variable-rate Space-time Block Codes
Kiarashi, Nooshin (2008-09-27)We present a new sub-optimal near-maximum-likelihood (ML) detection method for the family of variable-rate space-time block codes (VRSTBC). The proposed detection method is based on the concept of symbol reliability and ... -
Soliton-Like LT Codes over GF(4) and GF(8)
Spencer, James (2016-03-30)The Luby Transform (LT) codes are the first practical realization of fountain codes. LT codes were designed for efficient use over erasure channels. However, the degree distributions designed for the Binary Erasure Channel ... -
System Design and Performance Study for Wireless Information and Energy Transfer in the Internet of Things
Hedayati, MohammadaliIn a tremendous evolution, billions of physical objects are being connected to the Internet, shaping Internet of Things (IoT) as one of the most disruptive technologies that has ever been witnessed. This revolutionary ... -
Trapping Sets in Fountain Codes over Noisy Channels
Orozco, Vivian (2009-11-04)Fountain codes have demonstrated great results for the binary erasure channel and have already been incorporated into several international standards to recover lost packets at the application layer. These include multimedia ...