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Publication
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| Title of Article |
Improving Belief Propagation Decoding of Polar Codes using Bi-Directional Bit-Flipping Strategy |
| Date of Acceptance |
3 August 2022 |
| Journal |
| Title of Journal |
Engineering Access |
| Standard |
TCI |
| Institute of Journal |
Faculty of Engineering, Mahasarakham University |
| ISBN/ISSN |
2730-4175 |
| Volume |
2022 |
| Issue |
2 |
| Month |
8 |
| Year of Publication |
2022 |
| Page |
287-295 |
| Abstract |
It is difficult to achieve high throughput and low latency from the cyclic redundancy check (CRC-) aided successive cancellation list (CA-SCL) polar decoder employed in 5G new radio systems. To tackle this problem, the hardware-efficient belief propagation (BP) decoder has been extensively studied. Unfortunately, the performance of the BP decoding for polar codes is quite poor. To improve the performance of this decoder, a novel bi-directional bit-flipping (BF) strategy is proposed. The rule of generating the flip set based on the post log-likelihood ratio (LLR) is combined with the possibility of the two-way flipping. With the help of this idea, the decoding performance of BP decoder is identical to that of the CA-SCL decoder. Moreover, with the same complexity, our proposed BF strategy outperforms both the best known one-directional BF strategy and the previously found bi-directional BF strategy at BLER of 10-4. |
| Keyword |
polar codes, belief propagation, bit-flipping |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
ชาติ |
| citation |
false |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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