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Published January 20, 2016 | Submitted
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Balanced Modulation for Nonvolatile Memories

Abstract

This paper presents a practical writing/reading scheme in nonvolatile memories, called balanced modulation, for minimizing the asymmetric component of errors. The main idea is to encode data using a balanced error-correcting code. When reading information from a block, it adjusts the reading threshold such that the resulting word is also balanced or approximately balanced. Balanced modulation has suboptimal performance for any cell-level distribution and it can be easily implemented in the current systems of nonvolatile memories. Furthermore, we studied the construction of balanced error-correcting codes, in particular, balanced LDPC codes. It has very efficient encoding and decoding algorithms, and it is more efficient than prior construction of balanced error-correcting codes.

Additional Information

Submitted on 4 Sep 2012. This work was supported in part by the NSF CAREER Award CCF-0747415, the NSF grant ECCS-0802107, and by an NSF-NRI award. This paper was presented in part at IEEE International Symposium on Information Theory (ISIT), St. Petersburg, Russia, August 2011.

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Created:
August 19, 2023
Modified:
October 17, 2023