The random linear-code list-decoding conjecture

From papers

Let qq be a prime power, let 0<p<11/q0<p<1-1/q, and let Hq(p)H_q(p) denote the qq-ary entropy. A random linear code of rate 1Hq(p)δ1-H_q(p)-\delta is chosen uniformly among linear codes of that rate over \bFqn\bF_q^n, and a code is (p,L)(p,L)-list decodable if every Hamming ball of relative radius pp contains at most LL codewords. Random linear-code list-decoding conjecture. For every δ>0\delta>0, a random linear code of rate 1Hq(p)δ1-H_q(p)-\delta over \bFq\bF_q is (p,1/δ)(p,1/\delta)-list decodable with high probability as nn\to\infty. Random linear codes are a natural structured analogue of uniformly random codes; the conjecture asserts constant-in-nn list size with the expected dependence on the gap from capacity.

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Sources & referencesView supporting material

Primary source

Yihan Zhang and Shashank Vatedka, “List Decoding Random Euclidean Codes and Infinite Constellations”, arXiv:1901.03790 (2021).

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