dorsal/arxiv
View SchemaReconstructing Reed-Solomon Codes from Multiple Noisy Channel Outputs
| Authors | Shubhransh Singhvi, Han Mao Kiah, Eitan Yaakobi |
|---|---|
| Categories | |
| ArXiv ID | 2601.09947vv1 |
| URL | https://arxiv.org/abs/2601.09947 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
The sequence reconstruction problem, introduced by Levenshtein in 2001, considers a communication setting in which a sender transmits a codeword and the receiver observes K independent noisy versions of this codeword. In this work, we study the problem of efficient reconstruction when each of the $K$ outputs is corrupted by a $q$-ary discrete memoryless symmetric (DMS) substitution channel with substitution probability $p$. Focusing on Reed-Solomon (RS) codes, we adapt the Koetter-Vardy soft-decision decoding algorithm to obtain an efficient reconstruction algorithm. For sufficiently large blocklength and alphabet size, we derive an explicit rate threshold, depending only on $(p, K)$, such that the transmitted codeword can be reconstructed with arbitrarily small probability of error whenever the code rate $R$ lies below this threshold.
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"date_created": "2026-02-17T05:53:24.270000Z",
"date_modified": "2026-02-17T05:53:24.270000Z",
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"record": {
"abstract": "The sequence reconstruction problem, introduced by Levenshtein in 2001, considers a communication setting in which a sender transmits a codeword and the receiver observes K independent noisy versions of this codeword. In this work, we study the problem of efficient reconstruction when each of the $K$ outputs is corrupted by a $q$-ary discrete memoryless symmetric (DMS) substitution channel with substitution probability $p$. Focusing on Reed-Solomon (RS) codes, we adapt the Koetter-Vardy soft-decision decoding algorithm to obtain an efficient reconstruction algorithm. For sufficiently large blocklength and alphabet size, we derive an explicit rate threshold, depending only on $(p, K)$, such that the transmitted codeword can be reconstructed with arbitrarily small probability of error whenever the code rate $R$ lies below this threshold.",
"arxiv_id": "2601.09947",
"authors": [
"Shubhransh Singhvi",
"Han Mao Kiah",
"Eitan Yaakobi"
],
"categories": [
"cs.IT",
"math.IT"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Reconstructing Reed-Solomon Codes from Multiple Noisy Channel Outputs",
"url": "https://arxiv.org/abs/2601.09947",
"version": "v1"
},
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"execution_id": "2376c148-9a24-46a8-b7e0-8a55bb3ac957",
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"type": "Model",
"variant": "snapshot-2026-01-17",
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