Browsing by Author "Al-Mehdar, Omar Salem"
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Item Restricted Error detection in algorithm-based fault-tolerant systems(Saudi Digital Library) Al-Mehdar, Omar SalemAlgorithm-based fault tolerance has been proposed as a technique to detect incorrect computations in multiprocessor systems. In algorithm-based fault tolerance, processors produce data elements that are checked by concurrent error detection mechanisms. Error detecting codes are designed to detect errors with a degree of detectability left to the end user. In this thesis, we propose new 3-ED (3-Error Correcting) codes that are more efficient than the 3-ED codes currently available in the literature. We also study lower bounds for t-ED codes, and propose a general t-ED codes construction. In addition, we introduce a new family of codes: single-error locating/double error detecting (1-EL/2-ED) codes, for which a general construction is proposed. The proposed codes are compared with codes found by computer search to verify optimality.3 0