To address this im-portant but largely unexplored issue, this paper presents three techniques to mitigate the LDPC-induced response time delay so that SSDs can benefit its strong error cor-rection capability to the full extent.

Low-density parity-check (LDPC) codes are a class of error correction codes which (together with the closely-related turbo codes) have gained prominence in coding theory and information theory since the late 1990s. The codes today are widely used in applications ranging from wireless communications to flash-memory storage.

Jun 6, 2019 · Error correction codes (ECC) such as LDPC, are techniques used to correct errors in the NAND flash, allowing recovery of data that may be corrupted due to bit errors.

To address this important but largely unexplored issue, this paper presents three techniques to mitigate the LDPC-induced response time delay so that SSDs can benefit its strong error correction capability to the full extent.

Mar 31, 2014 · LDPC error-correction technology, particularly through judicious use of soft-decision LDPC decoding, is able to meet output error rate requirements with much higher raw bit error rates, and...

Feb 12, 2013 · To address this important but largely unexplored issue, this paper presents three techniques to mitigate the LDPC-induced response time delay so that SSDs can benefit its strong error correction capability to the full extent.

Aug 14, 2013 · SMI provides very efficient LDPC decoder for TLC based SSD − The power increase slightly. − Correction capability increases 3 times comparing to BCH. − Adaptive Vth-tracking with joint Hard/soft decoding to improve the latency. − SLC to TLC direct-copy. − Good user experience, higher reliability.

May 8, 2023 · To address these concerns, SSDs employ a technology called Low-Density Parity-Check (LDPC) codes. In this article, we will delve deeper into The Importance of LDPC in SSD and understand how it enhances data reliability and performance.

• Enterprise SSD requirements keep growing • Next Generation NAND Flash Memory continue to evolve • LDPC is better equipped to combat the challenges of new NAND types • Combination of LDPC, CRC, RAID and Software is required to meet the Enterprise SSD needs

Dec 7, 2015 · In this post, we will take a look at what happens when that initial decode fails and how soft data can be used to recover data on the SSD. In October 1948, Claude Shannon published his seminal paper “A Mathematical Theory of Communication,” which kick-started the discipline of information theory.