Reserving high-index coordinates as frozen bits in PAC codes and embedding intermediate CRC remainders into frozen positions improves error-correction performance by up to 0.5 dB for short codes and 0.12 dB for longer codes.
On the minimum weight codewords o f pac codes: The impact of pre-transformation,
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PAC Codes Meet CRC-Polar Codes
Reserving high-index coordinates as frozen bits in PAC codes and embedding intermediate CRC remainders into frozen positions improves error-correction performance by up to 0.5 dB for short codes and 0.12 dB for longer codes.