Applied quasi-cyclic LDPC codes from doubly-extended RS code and cyclic MDS code
Based on doubly-extended RS codes and cyclic MDS codes,two construction schemes were proposed for ap-plied quasi-cyclic LDPC codes whose Tanner graph is free of 4-cycles.In the first approach,all the nonzero codewords within a doubly-extended RS code were employed,and hence provided more flexible pa...
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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 |
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| Online Access: | http://www.joconline.com.cn/zh/article/74654742/ |
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| _version_ | 1841537572666343424 |
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| author | ZHANG Guo-hua WANG Xin-mei |
| author_facet | ZHANG Guo-hua WANG Xin-mei |
| author_sort | ZHANG Guo-hua |
| collection | DOAJ |
| description | Based on doubly-extended RS codes and cyclic MDS codes,two construction schemes were proposed for ap-plied quasi-cyclic LDPC codes whose Tanner graph is free of 4-cycles.In the first approach,all the nonzero codewords within a doubly-extended RS code were employed,and hence provided more flexible parameters than the original or sin-gly-extended RS codes.Equivalent to the method from doubly-extended RS code,a straightforward procedure was de-rived,by which given generator polynomial of an RS code,LDPC codes could be constructed directly without pretreat-ment such as double extension and classification of codewords.In the second method,generator polynomials of cyclic MDS codes were utilized in a straightforward manner to build quasi-cyclic LDPC codes with its Tanner graph free of 4-cycles.Experimental results showed that the constructed codes from the two methods perform well over AWGN channels. |
| format | Article |
| id | doaj-art-cc55fda052874d0ea02e2b0f5fcb7b29 |
| institution | Kabale University |
| 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-cc55fda052874d0ea02e2b0f5fcb7b292025-01-14T08:32:27ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2008-01-0110010574654742Applied quasi-cyclic LDPC codes from doubly-extended RS code and cyclic MDS codeZHANG Guo-huaWANG Xin-meiBased on doubly-extended RS codes and cyclic MDS codes,two construction schemes were proposed for ap-plied quasi-cyclic LDPC codes whose Tanner graph is free of 4-cycles.In the first approach,all the nonzero codewords within a doubly-extended RS code were employed,and hence provided more flexible parameters than the original or sin-gly-extended RS codes.Equivalent to the method from doubly-extended RS code,a straightforward procedure was de-rived,by which given generator polynomial of an RS code,LDPC codes could be constructed directly without pretreat-ment such as double extension and classification of codewords.In the second method,generator polynomials of cyclic MDS codes were utilized in a straightforward manner to build quasi-cyclic LDPC codes with its Tanner graph free of 4-cycles.Experimental results showed that the constructed codes from the two methods perform well over AWGN channels.http://www.joconline.com.cn/zh/article/74654742/LDPC codeiterative decodingRS codeMDS code |
| spellingShingle | ZHANG Guo-hua WANG Xin-mei Applied quasi-cyclic LDPC codes from doubly-extended RS code and cyclic MDS code Tongxin xuebao LDPC code iterative decoding RS code MDS code |
| title | Applied quasi-cyclic LDPC codes from doubly-extended RS code and cyclic MDS code |
| title_full | Applied quasi-cyclic LDPC codes from doubly-extended RS code and cyclic MDS code |
| title_fullStr | Applied quasi-cyclic LDPC codes from doubly-extended RS code and cyclic MDS code |
| title_full_unstemmed | Applied quasi-cyclic LDPC codes from doubly-extended RS code and cyclic MDS code |
| title_short | Applied quasi-cyclic LDPC codes from doubly-extended RS code and cyclic MDS code |
| title_sort | applied quasi cyclic ldpc codes from doubly extended rs code and cyclic mds code |
| topic | LDPC code iterative decoding RS code MDS code |
| url | http://www.joconline.com.cn/zh/article/74654742/ |
| work_keys_str_mv | AT zhangguohua appliedquasicyclicldpccodesfromdoublyextendedrscodeandcyclicmdscode AT wangxinmei appliedquasicyclicldpccodesfromdoublyextendedrscodeandcyclicmdscode |