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Filtering by: Resource Type Dissertation Remove constraint Resource Type: Dissertation Subject Error-correcting codes (Information theory) Remove constraint Subject: Error-correcting codes (Information theory)

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  • Understanding and improving error-correcting output coding

    Creator:
    Kong, Eun Bae
    Abstract:
    Error-correcting output coding (ECOC) is a method for converting a k-classsupervised learning problem into a large number L of two-class supervised learningproblems and then combining the results of these L evaluations. Previous researchhas shown that ECOC can dramatically improve the classi cation accuracy of supervisedlearning algorithms that learn to classify...
    Resource Type:
    Dissertation

  • Unidirectional error correcting/detecting codes

    Creator:
    Lin, Der Jei
    Abstract:
    An extensive theory of symmetric error control coding has been developed in the last few decades. The recently developed VLSI circuits, ROM, and RAM memories have given an impetus to the extension of error control coding to include asymmetric and unidirectional types of error control. The maximal numbers of unidirectional...
    Resource Type:
    Dissertation

  • New bounds and constructions for error control codes

    Creator:
    Al-Darwish, Nasir Ali
    Abstract:
    The bulk of the theory on error control codes has been developed under the fault assumption of random (symmetric) errors, where 1 → 0 and 0 → 1 errors are equally likely. In the past few years, several applications have emerged in which the observed errors are highly asymmetric. This...
    Resource Type:
    Dissertation

  • Balanced codes

    Creator:
    Al-Bassam, Sulaiman
    Abstract:
    Balanced codes, in which each codeword contains equally many 1's and 0's, are useful in such applications as in optical transmission and optical recording. When balanced codes are used, the same number of 1's and 0's pass through the channel after the transmission of every word, so the channel is...
    Resource Type:
    Dissertation

  • Fast Galois field arithmetic for elliptic curve cryptography and error control codes

    Creator:
    Sunar, Berk
    Abstract:
    Today's computer and network communication systems rely on authenticated and secure transmission of information, which requires computationally efficient and low bandwidth cryptographic algorithms. Among these cryptographic algorithms are the elliptic curve cryptosystems which use the arithmetic of finite fields. Furthermore, the fields of characteristic two are preferred since they provide...
    Resource Type:
    Dissertation

  • Concurrent error detection

    Creator:
    Gorshe, Steven Scott
    Abstract:
    Concurrent error detection (CED) is the detection of errors or faults in a circuit or data path concurrent with normal operation of that circuit. The general approach for CED is to calculate a check symbol for the inputs to the circuit under operation, predict the check symbol that will result...
    Resource Type:
    Dissertation

  • Some contributions to asymmetric error control codes

    Creator:
    Elmougy, Samir
    Abstract:
    In some practical systems, most of the errors are of 1 → 0 type and 0 → 1 errors occur very rarely. In this thesis, first, the capacity of the asymmetric channel is derived. The capacity of the binary symmetric channel (BSC) and the Z-channel can be derived from this...
    Resource Type:
    Dissertation

  • Error control techniques for the Z-channel

    Creator:
    Oprisan, Paul
    Abstract:
    The asymmetric nature of bit errors in several practical applications provides grounds for efficient error control techniques. The Z-channel model and special classes of codes like asymmetric error detection codes and t-asymmetric error correcting/d-asymmetric error detecting codes can be successfully used in ARQ protocols for feedback error control enhancement. This...
    Resource Type:
    Dissertation

  • Efficient decoder design for error correction codes

    Creator:
    He, Jinjin
    Abstract:
    Error correction codes (ECCs) have been widely used in communication systems and storage devices. Nowadays, the rapid development of integrated circuit technologies makes feasible the implementation of powerful ECCs such as turbo code and low-density parity-check (LDPC) code. However, these high-performance codes require complex decoding algorithms, resulting in large hardware...
    Resource Type:
    Dissertation