Study on the SOVA decoding algorithm for Turbo codes based on modified path-metric
Based on the analyses of the traditional SOVA algorithm,a novel SOVA decoding algorithm was proposed in order to avoid probability calculation of wrong path-metric. The reliability value of the last bit within the decoding trellis is adjusted based on the difference of the accumulated path-metrics a...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2008-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/thesisDetails?columnId=74656762&Fpath=home&index=0 |
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| _version_ | 1850213778461818880 |
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| author | LIU Xing-cheng ZHU Zhi |
| author_facet | LIU Xing-cheng ZHU Zhi |
| author_sort | LIU Xing-cheng |
| collection | DOAJ |
| description | Based on the analyses of the traditional SOVA algorithm,a novel SOVA decoding algorithm was proposed in order to avoid probability calculation of wrong path-metric. The reliability value of the last bit within the decoding trellis is adjusted based on the difference of the accumulated path-metrics among the survivor paths connected to register states. Theoretical computation and simulation results show that the proposed algorithm could greatly improve the BER per-formance of Turbo decoding. |
| format | Article |
| id | doaj-art-2159a39ec28d4959b6e950345fe01b44 |
| institution | OA Journals |
| issn | 1000-436X |
| language | zho |
| publishDate | 2008-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-2159a39ec28d4959b6e950345fe01b442025-08-20T02:09:04ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2008-01-0112412974656762Study on the SOVA decoding algorithm for Turbo codes based on modified path-metricLIU Xing-chengZHU ZhiBased on the analyses of the traditional SOVA algorithm,a novel SOVA decoding algorithm was proposed in order to avoid probability calculation of wrong path-metric. The reliability value of the last bit within the decoding trellis is adjusted based on the difference of the accumulated path-metrics among the survivor paths connected to register states. Theoretical computation and simulation results show that the proposed algorithm could greatly improve the BER per-formance of Turbo decoding.http://www.joconline.com.cn/thesisDetails?columnId=74656762&Fpath=home&index=0Turbo codes;soft output Viterbi algorithm;iterative decoding;path-metric;depth of decoding trellis |
| spellingShingle | LIU Xing-cheng ZHU Zhi Study on the SOVA decoding algorithm for Turbo codes based on modified path-metric Tongxin xuebao Turbo codes;soft output Viterbi algorithm;iterative decoding;path-metric;depth of decoding trellis |
| title | Study on the SOVA decoding algorithm for Turbo codes based on modified path-metric |
| title_full | Study on the SOVA decoding algorithm for Turbo codes based on modified path-metric |
| title_fullStr | Study on the SOVA decoding algorithm for Turbo codes based on modified path-metric |
| title_full_unstemmed | Study on the SOVA decoding algorithm for Turbo codes based on modified path-metric |
| title_short | Study on the SOVA decoding algorithm for Turbo codes based on modified path-metric |
| title_sort | study on the sova decoding algorithm for turbo codes based on modified path metric |
| topic | Turbo codes;soft output Viterbi algorithm;iterative decoding;path-metric;depth of decoding trellis |
| url | http://www.joconline.com.cn/thesisDetails?columnId=74656762&Fpath=home&index=0 |
| work_keys_str_mv | AT liuxingcheng studyonthesovadecodingalgorithmforturbocodesbasedonmodifiedpathmetric AT zhuzhi studyonthesovadecodingalgorithmforturbocodesbasedonmodifiedpathmetric |