標題: BCH Code Selection and Iterative Decoding for BCH and LDPC Concatenated Coding System
作者: Chen, Pin-Han
Weng, Jian-Jia
Wang, Chung-Hsuan
Chen, Po-Ning
電機資訊學士班
Undergraduate Honors Program of Electrical Engineering and Computer Science
關鍵字: Concatenated coding;iterative decoding;flash memory
公開日期: 1-May-2013
摘要: In this letter, we consider a concatenated BCH and QC-LDPC coding system for potential use of data protection on flash memory. Two issues are studied, and strategies to resolve them are proposed. First, in order to guarantee that the concatenated coding system is free from undesired error floor, we propose a strategy to select the outer BCH codes according to the error patterns of inner QC-LDPC code. We next present an iterative decoding algorithm between inner QC-LDPC and outer BCH codes to alleviate the performance degradation in the waterfall region due to code-concatenation rate loss. The two proposals jointly provide a feasible design for the concatenated BCH and QC-LDPC coding system. Simulations to verify the performance of the proposed concatenated coding system design are given at the end.
URI: http://dx.doi.org/10.1109/LCOMM.2013.031913.130142
http://hdl.handle.net/11536/22378
ISSN: 1089-7798
DOI: 10.1109/LCOMM.2013.031913.130142
期刊: IEEE COMMUNICATIONS LETTERS
Volume: 17
Issue: 5
起始頁: 980
結束頁: 983
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