| Liu Bing (刘冰),Tao Wei,Dou Gaoqi,Gao Jun.[J].高技术通讯(英文),2013,19(1):58~62 |
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| Hybrid weighted symbol-flipping decoding for nonbinary LDPC codes |
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| DOI： |
| 中文关键词: |
| 英文关键词: nonbinary low-density parity-check (LDPC) code, weighted symbol-flipping (WSF), hybrid weighted symbol-flipping (HWSF), iterative decoding |
| 基金项目: |
| Author Name | Affiliation | | Liu Bing (刘冰) | | | Tao Wei | | | Dou Gaoqi | | | Gao Jun | |
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| 中文摘要: |
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| 英文摘要: |
| A hybrid decoding algorithm is proposed for nonbinary low-density parity-check (LDPC) codes, which combines the weighted symbol-flipping (WSF) algorithm with the fast Fourier transform q-ary sum-product algorithm (FFT-QSPA). The flipped position and value are determined by the symbol flipping metric and the received bit values in the first stage WSF algorithm. If the low-complexity WSF algorithm is failed, the second stage FFT-QSPA is activated as a switching strategy. Simulation results show that the proposed hybrid algorithm greatly reduces the computational complexity with the performance close to that of FFT-QSPA. |
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