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| Content Provider | IET Digital Library |
|---|---|
| Author | Rajab, Mohammed Shavgulidze, Sergo Freudenberger, Jürgen |
| Abstract | Error correction coding based on soft-input decoding can significantly improve the reliability of non-volatile flash memories. This work proposes a soft-input decoder for generalised concatenated (GC) codes. GC codes are well suited for error correction in flash memories for high reliability data storage. The authors propose GC codes constructed from inner extended binary Bose–Chaudhuri–Hocquenghem (BCH) codes and outer Reed–Solomon (RS) codes. The extended BCH codes enable an efficient hard-input decoding. Furthermore, a low-complexity soft-input decoding method is proposed. This bit-flipping decoder uses a fixed number of test patterns and an algebraic decoder for soft-decoding. An acceptance criterion for the final candidate codeword is proposed. Combined with error and erasure decoding of the outer RS codes, this acceptance criterion can improve the decoding performance and reduce the decoding complexity. The presented simulation results show that the proposed bit-flipping decoder in combination with outer error and erasure decoding can outperform maximum-likelihood decoding of the inner codes. |
| Starting Page | 460 |
| Ending Page | 467 |
| Page Count | 8 |
| ISSN | 17518628 |
| Volume Number | 13 |
| e-ISSN | 17518636 |
| Issue Number | Issue 4, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/13/4 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.5534 |
| Journal | IET Communications |
| Publisher Date | 2018-11-15 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Acceptance Criterion Algebraic Decoder BCH Codes Binary Codes Bit-flipping Decoder Candidate Codeword Code Concatenated Codes Decoding Decoding Complexity Decoding Performance Efficient Hard-input Decoding Erasure Decoding Error Correction Code Error Correction Coding Extended BCH Code Flash Memories GC Code Generalised Concatenated Code High Reliability Data Storage Inner Extended Binary Bose–Chaudhuri–Hocquenghem Codes Integrated Circuit Reliability Low-complexity Soft-input Decoding Method Maximum-likelihood Decoding Memory Circuit Nonvolatile Flash Memories Outer Reed–Solomon Codes Outer RS Code Parity Check Code Random-access Storage Reed-Solomon Code Soft-input Bit-flipping Decoding Soft-input Decoder Test Pattern |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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