Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 28 for “"Soft information"”.
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Accounting conservatism and debt contract efficiency with soft information.
… and lenders have access to non-contractible “soft information”, in addition to the more objective accounting information. I show that conservative accounting can increase the efficiency of debt contracting when the other soft information is also sufficiently conservative (to be defined in the …
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Quantized Guessing Random Additive Noise Decoding - A Universal Quantized Soft-Decoder
… natural extension was to incorporate the use of soft-information. The result was Soft Guessing Random Additive Noise Decoding (SGRAND). SGRAND assumes access to complete soft information, proving itself to be a maximum-likelihood soft-detection decoder. Physical limitations, however, prevent one …
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Three essays in financial markets and banking
… of loss in the second year. The third essay, Soft Information and Internal Credit Ratings of Bank Loans, answers whether soft information plays an important role in a bank's internal credit ratings and if it does, whether it leads to a ""better"" or ""worse"" prediction of the borrowing firm's …
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Joint Localization and Synchronization via User Cooperation in Non-Terrestrial Networks
… challenge through spatiotemporal cooperation, soft information, and simultaneous synchronization. Furthermore, we propose a three-step algorithm for performing JCLS. The first step calculates a coarse position estimate using TOA measurements and the Gauss-Newton method. Then, this coarse …
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Combining Channel Sounding and Guessing Random Additive Noise Decoding
… symbol assisted modulation schemes. Using a soft-information variant of the GRAND algorithm called Ordered Reliability Bit Guessing Random Additive Noise Decoding- Approximate Independence (ORBGRAND-AI), it is shown that by accounting for the correlation between received symbols bit and block …
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Data reliability and error correction for NAND Flash Memory System
… parity-check (LDPC) codes generally demand soft decisions while NAND flash memory channel provides hard-decisions only. Extracting the soft information requires the accurate characterization of flash memory channel and the effective design of coding schemes. To this end, we have presented a …
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Soft Processing Techniques for Quantum Key Distribution Applications
This thesis deals with soft-information based information reconciliation and data sifting for Quantum Key Distribution (QKD). A novel composite channel model for QKD is identified, which includes both a hard output quantum channel and a soft output classic channel. The Log-Likelihood Ratios, - also …
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Design and analysis of transmission strategies in wireless relay networks
… with and without memory. In this thesis, a novel soft information forwarding technique based on symbol-wise mutual information, referred to as mutual information based forwarding (MIF) for memoryless relay networks is proposed. An analytical framework to evaluate the error performance of the …
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Towards location-awareness in next generation wireless networks : a new approach based on channel state information
… a novel approach to localization based on soft information (SI), exploiting all positional information inherent in measurement and contextual data, has been proposed. This thesis further develops SI-based localization by establishing a new approach relying on channel state information (CSI) …
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Low-power discrete Fourier transform and soft-decision Viterbi decoder for OFDM receivers
… systems has been based on the principle that the information signals flowing through the system are represented in digits. Consequently, the system itself has been heavily driven to be implemented with digital circuits, which is generally beneficial over analog implementations when digitally …
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Optimization of a Coded-Modulation System with Shaped Constellation
… constellation with uniform probability. However, information-theoretic results suggest that performance may be improved by shaping the constellation such that lower-energy signals are selected more frequently than higher-energy signals. This dissertation presents an energy efficient approach for …
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ESSAYS ON THE FINTECH LENDING MARKET
… using a dataset of both extensive credit and soft information for borrowers from the largest FinTech lender in the United States. In the first essay, I study the default risk in this market over the business cycle. I find that both macro and regional economic conditions play a role in consumer …
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Network coded wireless architecture
… over multiple unicast flows, analog signals, and soft-information.
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Implementation of Parallel and Serial Concatenated Convolutional Codes
… the Log-MAP decoding algorithm and the general soft-input soft-output (SISO) decoding module. Sliding window techniques, which can be employed to reduce memory requirements, are also briefly discussed. The second part of this dissertation presents four major contributions to the field of …
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Selective Interference Cancellation and Frame Synchronization for Packet Radio
… cancellation and convolutional coding. Information is shared between the operations of interference cancellation and decoding in an iterative manner, using log-likelihood ratios of the estimated coded symbols. We investigate the performance of this system for both synchronous and …
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Direct-form adaptive equalization for underwater acoustic communication
… concepts from inference and decision theory and information theory to provide an approach to deriving and analyzing adaptation algorithms. Limited work has been done so far on rigorously devising adaptation algorithms to suit a particular situation, and the aim of this thesis is to concretize …
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Latent variable models for hippocampal sequence analysis
… and throws away potentially valuable information from unsorted spikes, as well as our certainty about the cluster assignments. It has previously been shown that we can often do just as well, or in some cases even better, if we forego the spike sorting process altogether, and work …
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Distributed Space-Time Message Relaying for Uncoded/Coded Wireless Cooperative Communications
… communication processes this abundant information existing at the surrounding nodes and retransmits towards the destination in various forms to create spatial and/or coding diversity, thereby to obtain higher throughput and reliability. The aim of this work is to design cooperative …
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Distributed Turbo Product Coding Techniques Over Cooperative Communication Systems
… vertically. We propose and derive a novel soft information relay for the DTPC over cooperative network based on EBCH component codes. The relay generates Log-Likelihood Ratio (LLR) values for the decoded rows are used to construct a product code by re-encoding the matrix along the columns …
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