
arXiv: 2105.14754
Understanding the limits of list-decoding and list-recovery of Reed-Solomon (RS) codes is of prime interest in coding theory and has attracted a lot of attention in recent decades. However, the best possible parameters for these problems are still unknown, and in this paper, we take a step in this direction. We show the existence of RS codes that are list-decodable or list-recoverable beyond the Johnson radius for \emph{any} rate, with a polynomial field size in the block length. In particular, we show that for any $��\in (0,1)$ there exist RS codes that are list-decodable from radius $1-��$ and rate less than $\frac��{2-��}$, with constant list size. We deduce our results by extending and strengthening a recent result of Ferber, Kwan, and Sauermann on puncturing codes with large minimum distance and by utilizing the underlying code's linearity.
15 pages
FOS: Computer and information sciences, Computer Science - Information Theory, Information Theory (cs.IT), FOS: Mathematics, Mathematics - Combinatorics, Combinatorics (math.CO)
FOS: Computer and information sciences, Computer Science - Information Theory, Information Theory (cs.IT), FOS: Mathematics, Mathematics - Combinatorics, Combinatorics (math.CO)
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