Refine
Year of publication
Document Type
- Conference Proceeding (15)
- Article (10)
Language
- English (25)
Keywords
- Antenna arrays (1)
- Block codes (1)
- Channel estimation (2)
- Channel fading (1)
- Coded modulation (1)
- Codes over Gaussian integers (1)
- Concatenated codes (1)
- Decoding (2)
- Digital modulation (1)
- Error correction codes (1)
Institute
Generalized concatenated (GC) codes with soft-input decoding were recently proposed for error correction in flash memories. This work proposes a soft-input decoder for GC codes that is based on a low-complexity bit-flipping procedure. This bit-flipping decoder uses a fixed number of test patterns and an algebraic decoder for soft-input decoding. An acceptance criterion for the final candidate codeword is proposed. Combined with error and erasure decoding of the outer Reed-Solomon codes, this bit-flipping decoder can improve the decoding performance and reduce the decoding complexity compared to the previously proposed sequential decoding. The bit-flipping decoder achieves a decoding performance similar to a maximum likelihood decoder for the inner codes.