Stochastic Decoding of LDPC Codes over GF(q)
Stochastic Decoding of LDPC Codes over GF(q)
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DOI：
10.1109/icc.2009.5199493
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发表时间：
2009-06
期刊：
影响因子：
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通讯作者：
Gabi Sarkis;Shie Mannor;W. Gross
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文献类型：
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作者：
Gabi Sarkis;Shie Mannor;W. Gross
Nonbinary LDPC codes have been shown to outperform currently used codes for magnetic recording and several other channels. Currently proposed nonbinary decoder architectures have very high complexity for high-throughput implementations and sacrifice error-correction performance to maintain realizable complexity. In this paper, we present an alternative decoding algorithm based on stochastic computation that has a very simple implementation and minimal performance loss when compared to the sum-product algorithm. We demonstrate the performance of the algorithm when applied to a GF(16) code and provide details of the hardware resources required for an implementation.
