Fast Sequence Repetition Node-Based Successive Cancellation List Decoding for Polar Codes
Compared with the bit-wise successive cancellation list (SCL) decoding of polar codes, the node-based Fast SCL decoding significantly reduces the decoding latency by identifying special constituent codes and decoding these in parallel. To further reduce the latency of current Fast SCL decoders, we first propose a fast sequence repetition (SR) node-based SCL (Fast SR-SCL) decoding algorithm, which only involves one type of node in the SCL decoding tree. Furthermore, we employ the adaptive path splitting (APS) strategy to terminate the path splitting in the SR node early, without degrading the error-correcting performance. Numerical results show that for 5G uplink codes with a length of 1024 and rates of 1/4, 1/2, and 3/4, our decoder can deliver the same decoding performance while reducing the average latency by 34.5%, 38.0%, and 39.6% compared with the state-of-the-art Fast SCL decoder for a list size L = 8.
Cite this item
Shen, Y., Ren, Y., Kristensen, A. T., Balatsoukas-Stimming, A., You, X., Zhang, C., & Burg, A. P. (2022). Fast Sequence Repetition Node-Based Successive Cancellation List Decoding for Polar Codes. Ieee International Conference on Communications (Icc 2022), IEEE International Conference on Communications, 116–122. https://doi.org/10.1109/ICC45855.2022.9839072
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WOS:000864709900020
2022-01-01
New York
978-1-5386-8347-7
IEEE International Conference on Communications
116
122
REVIEWED
EPFL
| Event name | Event place | Event date |
Seoul, SOUTH KOREA | May 16-20, 2022 | |