Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm
As a necessary input parameter for MAP decoding algorithm,SNR was normally obtained from the channel estimation unit.Corresponding research indicated that SNR estimation deviation degraded significantly the performance of Turbo decoding.MAP decoding algorithm with SNR estimation deviation was invest...
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| Format: | Article |
| Language: | zho |
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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/74667078/ |
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| _version_ | 1841537329617960960 |
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| author | WAN Ke FAN Ping-zhi |
| author_facet | WAN Ke FAN Ping-zhi |
| author_sort | WAN Ke |
| collection | DOAJ |
| description | As a necessary input parameter for MAP decoding algorithm,SNR was normally obtained from the channel estimation unit.Corresponding research indicated that SNR estimation deviation degraded significantly the performance of Turbo decoding.MAP decoding algorithm with SNR estimation deviation was investigated in details,and the degradation mechanism of Turbo decoding was explained analytically.The theoretical analysis and computer simulation have disclosed the specific reasons for the performance degradation when SNR estimation is less than the actual value,and for the higher sensitivity of SNR estimation to long frame Turbo codes. |
| format | Article |
| id | doaj-art-a5ed47c44b224e1d95a097dd2bec4b91 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2006-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-a5ed47c44b224e1d95a097dd2bec4b912025-01-14T08:39:29ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2006-01-01414474667078Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithmWAN KeFAN Ping-zhiAs a necessary input parameter for MAP decoding algorithm,SNR was normally obtained from the channel estimation unit.Corresponding research indicated that SNR estimation deviation degraded significantly the performance of Turbo decoding.MAP decoding algorithm with SNR estimation deviation was investigated in details,and the degradation mechanism of Turbo decoding was explained analytically.The theoretical analysis and computer simulation have disclosed the specific reasons for the performance degradation when SNR estimation is less than the actual value,and for the higher sensitivity of SNR estimation to long frame Turbo codes.http://www.joconline.com.cn/zh/article/74667078/Turbo codesMAP decodingSNR estimationwireless communications |
| spellingShingle | WAN Ke FAN Ping-zhi Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm Tongxin xuebao Turbo codes MAP decoding SNR estimation wireless communications |
| title | Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm |
| title_full | Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm |
| title_fullStr | Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm |
| title_full_unstemmed | Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm |
| title_short | Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm |
| title_sort | sensitivity analysis of the channel estimation deviation to the map decoding algorithm |
| topic | Turbo codes MAP decoding SNR estimation wireless communications |
| url | http://www.joconline.com.cn/zh/article/74667078/ |
| work_keys_str_mv | AT wanke sensitivityanalysisofthechannelestimationdeviationtothemapdecodingalgorithm AT fanpingzhi sensitivityanalysisofthechannelestimationdeviationtothemapdecodingalgorithm |