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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
Full Text:: for CH in 2-EC/d-UED codes 86 5.3 The values of d using s bits for CH in 3-EC/d-UED codes 87 5.4 The

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
Full Text:: in which the number of l's and 0's in every code word differs by at most a certain value. 5- t-EC

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
Full Text:: a channel with input alphabet S and output alphabet Sy, let p(yjIXj) be the probability that the

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
Full Text:: has far fewer l's than 0's. T1 code uses one extra bit of redundancy over the BCH code in almost all

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
Full Text:: .................................... 47 4.3 The probability of undetected error of 2 t-EC/d-AED codes ........ 48 4.4 A 2-EC/8-AED code

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
Full Text:: serves as the basis of the vector space. A basis of the form S = {1, a, a2, , am-1}, where a E GF(2m

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
Full Text:: , 2002 Commencement June 2002 Doctor of Philosophy dissertation of Steven S. Gorshe presented on

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