1. ВИЯВЛЕННЯ ТА ВИПРАВЛЕННЯ ПОМИЛОК У ЗАХИЩЕНИХ СИСТЕМАХ ЗБЕРІГАННЯ ДАНИХ НА ОСНОВІ ОБЧИСЛЕННЯ ПРОЕКЦІЙ ЧИСЛА.
- Author
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Кулина, С. В.
- Subjects
DATA transmission systems ,ERROR probability ,DATA warehousing ,DATA protection ,CHINESE remainder theorem - Abstract
The system of distributed data storage includes, in addition to the devices themselves, on which information will be stored, as well as communication channels through which it is forwarded. When transmitting information to considerable distances, there are a number of new problems that need to be solved. An analysis of the current state and development of data transmission and storage systems shows that it is necessary to use various technical and software methods of information protection from distortion, loss or theft. The use of only one of them is not effective, so they usually use their combination. The most widely used data protection methods are the methods based on the use of correction codes, particularly the residue number system (RNS) codes. Due to the presentation of information in the form of remainders from the division of data into each element of the system of mutually simple modules, a reduction in the number of digits with which operations are carried out is achieved. The simplification of information collection and transmission system due to the presentation of information in the form of residuals is investigated in this paper. The initial range of calculations expansion implemented by the introduction of additional backup modules is suggested for data protection, that allows to increase the probability of error detection to 100%. The advantages and disadvantages of detecting and correcting errors with the use of corrective codes in RNS using the methods of calculating the syndrome and calculating the number projection is analyzed. The number of information modules in the designed systems can vary depending on the task, therefore, in the conducted studies, it was determined that with an increase in the number of information modules and combinations of distorted symbols, the number of undetected errors in percentage compliance remains practically unchanged. It is suggested to use RNS without additional error correction for designing information collection systems, as it is possible to choose a set of modules in such a way that the maximum number of errors that will not affect the system functionality. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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