LDGM Codes for Channel Coding and Joint Source-Channel Coding of Correlated Sources
We propose a coding scheme based on the use of systematic linear codes with low-density generator matrix (LDGM codes) for channel coding and joint source-channel coding of multiterminal correlated binary sources. In both cases, the structures of the LDGM encoder and decoder are shown, and a concaten...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2005-05-01
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| Series: | EURASIP Journal on Advances in Signal Processing |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/ASP.2005.942 |
| _version_ | 1818067676938895360 |
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| author | Javier Garcia-Frias Wei Zhong |
| author_facet | Javier Garcia-Frias Wei Zhong |
| author_sort | Javier Garcia-Frias |
| collection | DOAJ |
| description | We propose a coding scheme based on the use of systematic linear codes with low-density generator matrix (LDGM codes) for channel coding and joint source-channel coding of multiterminal correlated binary sources. In both cases, the structures of the LDGM encoder and decoder are shown, and a concatenated scheme aimed at reducing the error floor is proposed. Several decoding possibilities are investigated, compared, and evaluated. For different types of noisy channels and correlation models, the resulting performance is very close to the theoretical limits. |
| first_indexed | 2024-12-10T15:27:28Z |
| format | Article |
| id | doaj.art-0b9a7db037474455a3d04fabf2d25f94 |
| institution | Directory Open Access Journal |
| issn | 1687-6172 1687-6180 |
| language | English |
| last_indexed | 2024-12-10T15:27:28Z |
| publishDate | 2005-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-0b9a7db037474455a3d04fabf2d25f942022-12-22T01:43:29ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802005-05-012005694295310.1155/ASP.2005.942LDGM Codes for Channel Coding and Joint Source-Channel Coding of Correlated SourcesJavier Garcia-FriasWei ZhongWe propose a coding scheme based on the use of systematic linear codes with low-density generator matrix (LDGM codes) for channel coding and joint source-channel coding of multiterminal correlated binary sources. In both cases, the structures of the LDGM encoder and decoder are shown, and a concatenated scheme aimed at reducing the error floor is proposed. Several decoding possibilities are investigated, compared, and evaluated. For different types of noisy channels and correlation models, the resulting performance is very close to the theoretical limits.http://dx.doi.org/10.1155/ASP.2005.942channel codingLDPC codesLDGM codesiterative decodingcorrelated sourcesjoint source-channel coding. |
| spellingShingle | Javier Garcia-Frias Wei Zhong LDGM Codes for Channel Coding and Joint Source-Channel Coding of Correlated Sources EURASIP Journal on Advances in Signal Processing channel coding LDPC codes LDGM codes iterative decoding correlated sources joint source-channel coding. |
| title | LDGM Codes for Channel Coding and Joint Source-Channel Coding of Correlated Sources |
| title_full | LDGM Codes for Channel Coding and Joint Source-Channel Coding of Correlated Sources |
| title_fullStr | LDGM Codes for Channel Coding and Joint Source-Channel Coding of Correlated Sources |
| title_full_unstemmed | LDGM Codes for Channel Coding and Joint Source-Channel Coding of Correlated Sources |
| title_short | LDGM Codes for Channel Coding and Joint Source-Channel Coding of Correlated Sources |
| title_sort | ldgm codes for channel coding and joint source channel coding of correlated sources |
| topic | channel coding LDPC codes LDGM codes iterative decoding correlated sources joint source-channel coding. |
| url | http://dx.doi.org/10.1155/ASP.2005.942 |
| work_keys_str_mv | AT javiergarciafrias ldgmcodesforchannelcodingandjointsourcechannelcodingofcorrelatedsources AT weizhong ldgmcodesforchannelcodingandjointsourcechannelcodingofcorrelatedsources |