Performance analysis and optimisation for edge connection of JSCC system based on double protograph LDPC codes
For a joint source–channel coding system based on double protograph low-density parity-check codes, the exchange of extrinsic information through edge connection between the source code and channel code is essential for good performance. In this study, the relationship between the performance and ed...
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| Veröffentlicht in: | IET communications Jg. 12; H. 2; S. 214 - 219 |
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The Institution of Engineering and Technology
30.01.2018
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| Abstract | For a joint source–channel coding system based on double protograph low-density parity-check codes, the exchange of extrinsic information through edge connection between the source code and channel code is essential for good performance. In this study, the relationship between the performance and edge connection in the tanner graph is analysed and it has never been seen in the literature to the authors' knowledge. Both the joint protograph extrinsic information transfer and simulation results indicate that the edge connection should be optimised in practical applications since it plays an important role in the bit error rate performance and an optimisation scheme for the edge connection is put forward to enhance performance. |
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| AbstractList | For a joint source–channel coding system based on double protograph low‐density parity‐check codes, the exchange of extrinsic information through edge connection between the source code and channel code is essential for good performance. In this study, the relationship between the performance and edge connection in the tanner graph is analysed and it has never been seen in the literature to the authors' knowledge. Both the joint protograph extrinsic information transfer and simulation results indicate that the edge connection should be optimised in practical applications since it plays an important role in the bit error rate performance and an optimisation scheme for the edge connection is put forward to enhance performance. |
| Author | Chen, Qiwang Wang, Lin Hong, Shaohua |
| Author_xml | – sequence: 1 givenname: Shaohua surname: Hong fullname: Hong, Shaohua email: hongsh@xmu.edu.cn organization: Department of Communication Engineering, Xiamen University, Xiamen, Fujian, 361005, People's Republic of China – sequence: 2 givenname: Qiwang surname: Chen fullname: Chen, Qiwang organization: Department of Communication Engineering, Xiamen University, Xiamen, Fujian, 361005, People's Republic of China – sequence: 3 givenname: Lin surname: Wang fullname: Wang, Lin organization: Department of Communication Engineering, Xiamen University, Xiamen, Fujian, 361005, People's Republic of China |
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| Cites_doi | 10.1109/JSAC.2009.090806 10.1002/j.1538-7305.1948.tb01338.x 10.1109/LCOMM.2014.022714.140112 10.1109/LCOMM.2016.2554543 10.1109/TCOMM.2007.894109 10.1109/LCOMM.2015.2454505 10.1109/TIP.2006.888329 10.1109/ISMICT.2015.7107531 10.1109/TCOMM.2012.041212.100330 10.1109/LWC.2017.2718542 |
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| Keywords | JSCC system double protograph LDPC codes optimisation joint source-channel coding system optimisation scheme bit error rate performance parity check codes double protograph low-density parity-check codes combined source-channel coding edge connection tanner graph joint protograph extrinsic information transfer |
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| Snippet | For a joint source–channel coding system based on double protograph low-density parity-check codes, the exchange of extrinsic information through edge... For a joint source–channel coding system based on double protograph low‐density parity‐check codes, the exchange of extrinsic information through edge... |
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| SubjectTerms | bit error rate performance combined source‐channel coding double protograph LDPC codes double protograph low‐density parity‐check codes edge connection joint protograph extrinsic information transfer joint source‐channel coding system JSCC system optimisation optimisation scheme parity check codes Research Article tanner graph |
| Title | Performance analysis and optimisation for edge connection of JSCC system based on double protograph LDPC codes |
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