Layered HARQ Design for LDPC-Based Multi-Level Coded Modulation
Multi-level coded modulation (MLCM) enhances data transmission by allocating error correction more effectively to bits with higher error probabilities, thus optimizing redundancy and improving performance. Despite MLCM’s advantages over traditional bit-interleaved coded modulation (BICM) systems in...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-06-01
|
| Series: | Entropy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1099-4300/27/6/629 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849471822944272384 |
|---|---|
| author | Yuejun Wei Yue Chen Chunqi Chen Bin Xia Liandong Wang |
| author_facet | Yuejun Wei Yue Chen Chunqi Chen Bin Xia Liandong Wang |
| author_sort | Yuejun Wei |
| collection | DOAJ |
| description | Multi-level coded modulation (MLCM) enhances data transmission by allocating error correction more effectively to bits with higher error probabilities, thus optimizing redundancy and improving performance. Despite MLCM’s advantages over traditional bit-interleaved coded modulation (BICM) systems in certain scenarios, its integration with hybrid automatic repeat request (HARQ) systems remains underexplored. HARQ, which combines the benefits of forward error correction (FEC) and automatic repeat request (ARQ), significantly increases resilience to interference and fading, enhancing overall system reliability. This paper bridges the gap by integrating HARQ techniques into the MLCM framework, which was specifically adapted to the layered nature of MLCM. We present tailored hybrid retransmission strategies for each layer of MLCM, demonstrating substantial gains in retransmission efficiency and overall transmission performance. |
| format | Article |
| id | doaj-art-90d18d8db31449bebbb3df272c02c866 |
| institution | Kabale University |
| issn | 1099-4300 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj-art-90d18d8db31449bebbb3df272c02c8662025-08-20T03:24:40ZengMDPI AGEntropy1099-43002025-06-0127662910.3390/e27060629Layered HARQ Design for LDPC-Based Multi-Level Coded ModulationYuejun Wei0Yue Chen1Chunqi Chen2Bin Xia3Liandong Wang4School of Computer and Information Engineering, Shanghai Polytechnic University, Shanghai 201209, ChinaSchool of Computer and Information Engineering, Shanghai Polytechnic University, Shanghai 201209, ChinaDepartment of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaDepartment of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Computer and Information Engineering, Shanghai Polytechnic University, Shanghai 201209, ChinaMulti-level coded modulation (MLCM) enhances data transmission by allocating error correction more effectively to bits with higher error probabilities, thus optimizing redundancy and improving performance. Despite MLCM’s advantages over traditional bit-interleaved coded modulation (BICM) systems in certain scenarios, its integration with hybrid automatic repeat request (HARQ) systems remains underexplored. HARQ, which combines the benefits of forward error correction (FEC) and automatic repeat request (ARQ), significantly increases resilience to interference and fading, enhancing overall system reliability. This paper bridges the gap by integrating HARQ techniques into the MLCM framework, which was specifically adapted to the layered nature of MLCM. We present tailored hybrid retransmission strategies for each layer of MLCM, demonstrating substantial gains in retransmission efficiency and overall transmission performance.https://www.mdpi.com/1099-4300/27/6/629low-density parity checkmulti-level coded modulationhybrid automatic repeat requestchase combingincremental redundancybit rearrangement |
| spellingShingle | Yuejun Wei Yue Chen Chunqi Chen Bin Xia Liandong Wang Layered HARQ Design for LDPC-Based Multi-Level Coded Modulation Entropy low-density parity check multi-level coded modulation hybrid automatic repeat request chase combing incremental redundancy bit rearrangement |
| title | Layered HARQ Design for LDPC-Based Multi-Level Coded Modulation |
| title_full | Layered HARQ Design for LDPC-Based Multi-Level Coded Modulation |
| title_fullStr | Layered HARQ Design for LDPC-Based Multi-Level Coded Modulation |
| title_full_unstemmed | Layered HARQ Design for LDPC-Based Multi-Level Coded Modulation |
| title_short | Layered HARQ Design for LDPC-Based Multi-Level Coded Modulation |
| title_sort | layered harq design for ldpc based multi level coded modulation |
| topic | low-density parity check multi-level coded modulation hybrid automatic repeat request chase combing incremental redundancy bit rearrangement |
| url | https://www.mdpi.com/1099-4300/27/6/629 |
| work_keys_str_mv | AT yuejunwei layeredharqdesignforldpcbasedmultilevelcodedmodulation AT yuechen layeredharqdesignforldpcbasedmultilevelcodedmodulation AT chunqichen layeredharqdesignforldpcbasedmultilevelcodedmodulation AT binxia layeredharqdesignforldpcbasedmultilevelcodedmodulation AT liandongwang layeredharqdesignforldpcbasedmultilevelcodedmodulation |