Successive cancellation list decoding of polar codes provides very good performance for short to moderate block lengths. However, the list size required to approach the performance of maximum-likelihood decoding is still not well understood theoretically. This work identifies information-theoretic quantities that are closely related to this required list size. It also provides a natural approximation for these quantities that can be computed efficiently even for very long codes. Simulation results are provided for the binary erasure channel as well as the binary-input additive white Gaussian noise channel.
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Improved List-Decodability and List-Recoverability of Reed-Solomon Codes via Tree Packings: [Extended Abstract]
- Award ID(s):
- 1844628
- PAR ID:
- 10397173
- Date Published:
- Journal Name:
- Foundations of Computer Science (FOCS)
- Page Range / eLocation ID:
- 708 to 719
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation