SSCANL decoder based joint iterative detection and decoding algorithm
In order to improve the receiver performance of the sparse code multiple access (SCMA) system based on polar codes, the cyclic redundancy check (CRC) aided joint iterative detection and decoding receiver scheme based on simplify soft cancellation list (SSCANL) decoder (C-JIDD-SSCANL) was proposed.A...
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Beijing Xintong Media Co., Ltd
2022-10-01
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| Series: | Dianxin kexue |
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| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2022086/ |
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| author | Chongyang LIU Rui GUO |
| author_facet | Chongyang LIU Rui GUO |
| author_sort | Chongyang LIU |
| collection | DOAJ |
| description | In order to improve the receiver performance of the sparse code multiple access (SCMA) system based on polar codes, the cyclic redundancy check (CRC) aided joint iterative detection and decoding receiver scheme based on simplify soft cancellation list (SSCANL) decoder (C-JIDD-SSCANL) was proposed.A polar code decoder in the C-JIDD-SSCANL receiver used the SSCANL algorithm.In this algorithm, decoding node deletion technology was used to simplify L times of soft cancellation (SCAN) decoding required by soft cancellation list (SCANL) algorithm by deleting frozen bit nodes, then the computational process of soft information update between nodes was simplified, and the computational complexity of decoding algorithm was reduced.The simulation results show that the SSCANL algorithm can obtain the same performance as the SCANL algorithm, and its computational complexity is reduced compared with the SCANL algorithm.Compared with the joint iterative detection and decoding scheme based on SCAN decoder (JIDD-SCAN) and the CRC aided joint iterative detection and decoding scheme based on SCAN decoder (C-JIDD-SCAN), the performance of C-JIDD-SSCANL receiver scheme based on SSCANL decoder is improved by about 0.65 dB and 0.59 dB respectively when the bit error rate is 10<sup>-4</sup>. |
| format | Article |
| id | doaj-art-a0ad29a672934784a652ea1b0806d93c |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2022-10-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-a0ad29a672934784a652ea1b0806d93c2025-01-15T03:00:00ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012022-10-0138798859576219SSCANL decoder based joint iterative detection and decoding algorithmChongyang LIURui GUOIn order to improve the receiver performance of the sparse code multiple access (SCMA) system based on polar codes, the cyclic redundancy check (CRC) aided joint iterative detection and decoding receiver scheme based on simplify soft cancellation list (SSCANL) decoder (C-JIDD-SSCANL) was proposed.A polar code decoder in the C-JIDD-SSCANL receiver used the SSCANL algorithm.In this algorithm, decoding node deletion technology was used to simplify L times of soft cancellation (SCAN) decoding required by soft cancellation list (SCANL) algorithm by deleting frozen bit nodes, then the computational process of soft information update between nodes was simplified, and the computational complexity of decoding algorithm was reduced.The simulation results show that the SSCANL algorithm can obtain the same performance as the SCANL algorithm, and its computational complexity is reduced compared with the SCANL algorithm.Compared with the joint iterative detection and decoding scheme based on SCAN decoder (JIDD-SCAN) and the CRC aided joint iterative detection and decoding scheme based on SCAN decoder (C-JIDD-SCAN), the performance of C-JIDD-SSCANL receiver scheme based on SSCANL decoder is improved by about 0.65 dB and 0.59 dB respectively when the bit error rate is 10<sup>-4</sup>.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2022086/SCMApolar codeSSCANL decoderCRC aided joint iterative detection and decoding |
| spellingShingle | Chongyang LIU Rui GUO SSCANL decoder based joint iterative detection and decoding algorithm Dianxin kexue SCMA polar code SSCANL decoder CRC aided joint iterative detection and decoding |
| title | SSCANL decoder based joint iterative detection and decoding algorithm |
| title_full | SSCANL decoder based joint iterative detection and decoding algorithm |
| title_fullStr | SSCANL decoder based joint iterative detection and decoding algorithm |
| title_full_unstemmed | SSCANL decoder based joint iterative detection and decoding algorithm |
| title_short | SSCANL decoder based joint iterative detection and decoding algorithm |
| title_sort | sscanl decoder based joint iterative detection and decoding algorithm |
| topic | SCMA polar code SSCANL decoder CRC aided joint iterative detection and decoding |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2022086/ |
| work_keys_str_mv | AT chongyangliu sscanldecoderbasedjointiterativedetectionanddecodingalgorithm AT ruiguo sscanldecoderbasedjointiterativedetectionanddecodingalgorithm |