An Optimal Mapping Method of Error-Correcting Code and Multi-Level Modulation Signal Vector Points
From the brief analysis of the symbol-error distribution law for the corresponding multilevel modulation signal, it is discovered that the feedback decoding for the errors, which are located in different symbol locations, has different error-correcting ability. A set of computation method are also p...
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| Main Author: | |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
1992-01-01
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| Series: | Tongxin xuebao |
| Online Access: | http://www.joconline.com.cn/zh/article/74381941/ |
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| Summary: | From the brief analysis of the symbol-error distribution law for the corresponding multilevel modulation signal, it is discovered that the feedback decoding for the errors, which are located in different symbol locations, has different error-correcting ability. A set of computation method are also provided; using the computation methods the outputerror rate can be obtained from the input error rate. Combining the error-correcting code with the multi-level modulation signal, an optimal mapping relationship between the code and the modulation signal has been found. Therefore, a new appoach for increasing the practical error-correcting ability of the FEC has been provided for the multi-level modulation system. |
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| ISSN: | 1000-436X |