Multilevel coding scheme based on low-density parity-check codes in DAMB
A multilevel coding（MLC）scheme based on LDPC codes was investigated for digital amplitude modulation broadcasting（DAMB）system.Firstly,code rates of MLC were designed,then a multistage decoding strategy was provided based on reliability information instead of only hard decisions to subsequent decoder...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2006-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74666602/ |
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| Summary: | A multilevel coding（MLC）scheme based on LDPC codes was investigated for digital amplitude modulation broadcasting（DAMB）system.Firstly,code rates of MLC were designed,then a multistage decoding strategy was provided based on reliability information instead of only hard decisions to subsequent decoders.We also found a set of excellent irregular LDPC codes and examined the performance of them in DAMB channels.Simulations show that this scheme is more effective than the rate compatible punctured convolutional（RCPC）coded DAMB system. |
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| ISSN: | 1000-436X |