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 77 for “"Error Control"”.
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Error control for descriptor systems
Typescript (photocopy).
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Error Control in Wireless ATM Network
… links like fiber optics where the transmission error is extremely low. ATM performs poorly in an error-prone environment such as wireless communications. The purpose of this research is to investigate error control schemes in wireless ATM (W-ATM) to support real-time service, such that the …
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Design Of Fountain Codes With Error Control
This thesis is focused on providing unequal error protection (uep) to two disjoint sources which are communicating to a comdestination via a comrelay by using distributed lt codes over a binary erasure channel (bec), and designing fountain codes with error control property by integrating lt codes …
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Improved error control techniques for data transmission
Error control coding is frequently used to minimise the errors which occur naturally in the transmission and storage of digital data. Many methods for decoding such codes already exist. The choice falls mainly into two areas: hard-decision algebraic decoding, a computationally-efficient method, and …
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Uniform error control in sequential change diagnosis
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-05-01
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Error control for scalable image and video coding
… losses to scalable images and video, namely the error resilient method, the error concealment method, and the unequal error protection method within the joint source-channel coding framework. For the error resilient method, an optimal bit allocation algorithm is proposed without considering the …
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A hybrid multilayer error control technique for multihop ATM networks
… links are characterized by higher, time-varying error rates and burstier error patterns in comparison with the fiber-based links from which ATM was designed. The mean time error checking and correction get more and more important and necessary. In this work, a new multilayer error control …
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Simulation of the error control procedures in the Xpress Transport Protocol
… to fix some deficiencies in the Transmission Control Protocol (TCP), and to provide a highly efficiency transport service. This thesis presents the simulation of the error control procedures of XTP by using a simulation tool called SMURPH (System for Modeling Unslotted Real-time Phenomena), …
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Study of Modulation and Error Control Coding in Thick Film Digital Magnetic Recording
… concerned with the application of Modulation and Error Correction codes to Digitally Recorded Magnetic Data.<br/><br/>The effects of these coding schemes were measured against bitshift errors which are induced by different Non Clockloss Error Mechanisms. These Error mechanisms are Noise and Inter …
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An a posteriori error control framework for adaptive precision optimization using discontinuous Galerkin finite element method
Introduction: Aerodynamic design optimization has seen significant development over the past decade. Adjoint-based shape design for elliptic systems was first proposed by Pironneau and applied to transonic flow by Jameson . A review of the aerodynamic shape optimization literature and a large list …
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Approximate L² Error Control by Solution Post-Processing for Finite Element Solutions of PDEs with Higher-Order Adaptive Methods
… we build on previous work in a posteriori error estimation and mesh adaptation for finite element methods to propose a new mesh adaptation method based on L² error control by solution post-processing. A key feature of our method is its natural extension to higher-order discretizations while …
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ARQ Techniques for MIMO Communication Systems
… transmission rates and different packet error rates. The generalized ARQ protocols are shown to improve the transmission delay as well. A type-I hybrid-ARQ error control is used to illustrate the throughput gain of employing ARQ error control into MIMO communication systems. With the …
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Reliable and Low -Power Signal Processing via Algorithmic Noise -Tolerance
… submicron noise is presented. It is shown that error-control coding can be employed to approach these bounds. We introduce algorithmic noise-tolerance (ANT) which is employing error-control at the algorithmic level to achieve reliable operation in presence of noise. We introduce voltage …
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Multicast Services for Multimedia Collaborative Applications
… on multicast address management and connection control, routing, congestion and flow control, and error control. First, we investigate multicast address management and connection control and provide a new technique for address management based on address space partitioning. Second, we study the …
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Anisotropic output-based adaptation with tetrahedral cut cells for compressible flows
… is then combined with output-based error estimation and anisotropic adaptation such that the mesh size and shape are controlled by the output error estimate and the Hessian (i.e. second derivatives) of the Mach number, respectively. Using a parallel implementation, this output-based …
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Coding performance on the AX.25 radio packet
… has found many wide spread applications. For error control, AX.25 packet radio currently uses the go-back-N ARQ scheme which makes no attempt to correct errors, but only re-transmits packets which have been received with errors. This can lead to a very inefficient system when the channel error …
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Detailed Inventory Record Inaccuracy Analysis
… and analyzed; the IRI resistance and the error control methods. The discussed methods effectively countered various aspects of IRI; the IRI resistance method performs better on stock-out and lost sales, whereas error control method keeps lower inventory. Furthermore, this research also …
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