期刊
MATHEMATICS
卷 9, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/math9111269
关键词
integer codes; flash memory; asymmetric errors
类别
资金
- National Science Fund of Bulgaria [KP-06-N32/2-2019]
- Ministry of Education and Science of Bulgaria [D01-271/16.12.2019]
- National Centre for High Performance and Distributed Computing
Memory devices based on floating-gate transistors have become the dominant technology for non-volatile storage devices. Errors observed in flash memory devices are typically of a special, asymmetric type, and integer codes have been shown to be effective in correcting them. This paper presents a new construction of integer codes capable of correcting single errors typical for flash memory devices.
Memory devices based on floating-gate transistor have recently become dominant technology for non-volatile storage devices like USB flash drives, memory cards, solid-state disks, etc. In contrast to many communication channels, the errors observed in flash memory device use are not random but of special, mainly asymmetric, type. Integer codes which have proved their efficiency in many cases with asymmetric errors can be applied successfully to flash memory devices, too. This paper presents a new construction and integer codes over a ring of integers modulo A = 2(n) + 1 capable of correcting single errors of type (1, 2), (+/- 1, +/- 2), or (1, 2, 3) that are typical for flash memory devices. The construction is based on the use of cyclotomic cosets of 2 modulo A. The parity-check matrices of the codes are listed for n <= 10.
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