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Linear codes can be employed to construct authentication codes, which is an interesting area of cryptography. The parameters of the authentication codes depend on the complete weight enumerator of the underlying linear codes. In order to…

信息论 · 计算机科学 2015-05-27 Can Xiang , Hao Liu

Parity check matrices (PCMs) are used to define linear error correcting codes and ensure reliable information transmission over noisy channels. The set of codewords of such a code is the null space of this binary matrix. We consider the…

A likelihood encoder is studied in the context of lossy source compression. The analysis of the likelihood encoder is based on the soft-covering lemma. It is demonstrated that the use of a likelihood encoder together with the soft-covering…

信息论 · 计算机科学 2016-04-07 Eva C. Song , Paul Cuff , H. Vincent Poor

We consider the problem of minimizing a polynomial $f$ over the binary hypercube. We show that, for a specific set of polynomials, their binary non-negativity can be checked in a polynomial time via minimum cut algorithms, and we construct…

最优化与控制 · 数学 2024-05-24 Liding Xu , Leo Liberti

A q-ary linear code of dimension k is called a maximum weight spectrum (MWS) code if it has the maximum possible number (viz. (q^k-1)/(q-1)) of different non-zero weights. We construct MWS codes from quasi-minimal codes, thus obtaining of…

信息论 · 计算机科学 2018-06-15 Gerard D Cohen , Ludo Tolhuizen

We present a tree-based construction of LDPC codes that have minimum pseudocodeword weight equal to or almost equal to the minimum distance, and perform well with iterative decoding. The construction involves enumerating a $d$-regular tree…

信息论 · 计算机科学 2007-07-13 Christine Kelley , Deepak Sridhara , Joachim Rosenthal

A lower bound on the number of uncorrectable errors of weight half the minimum distance is derived for binary linear codes satisfying some condition. The condition is satisfied by some primitive BCH codes, extended primitive BCH codes,…

信息论 · 计算机科学 2008-04-30 Kenji Yasunaga , Toru Fujiwara

Minimal codes are linear codes where all non-zero codewords are minimal, i.e., whose support is not properly contained in the support of another codeword. The minimum possible length of such a $k$-dimensional linear code over $\mathbb{F}_q$…

组合数学 · 数学 2025-06-06 Vladimir Chubenko , Sascha Kurz

Linear codes play a central role in coding theory and have applications in several branches of mathematics. For error correction purposes the minimum Hamming distance should be as large as possible. Linear codes related to applications in…

信息论 · 计算机科学 2025-02-19 Sascha Kurz

For the past decades, linear codes with few weights have been widely studied, since they have applications in space communications, data storage and cryptography. In this paper, a class of binary linear codes is constructed and their weight…

信息论 · 计算机科学 2016-02-03 Fei Li , Yang Yan , Qiuyan Wang , Tongjiang Yan

In this paper, we consider how to partition the parity-check matrices (PCMs) to reduce the hardware complexity and computation delay for the row layered decoding of quasi-cyclic low-density parity-check (QC-LDPC) codes. First, we formulate…

信息论 · 计算机科学 2022-08-30 Teng Lu , Xuan He , Peng Kang , Jiongyue Xing , Xiaohu Tang

The iterative decoding threshold of low-density parity-check (LDPC) codes over the binary erasure channel (BEC) fulfills an upper bound depending only on the variable and check nodes with minimum distance 2. This bound is a consequence of…

信息论 · 计算机科学 2010-07-28 Enrico Paolini , Marc Fossorier , Marco Chiani

We propose a framework for sensitivity analysis of linear programs (LPs) in minimization form, allowing for simultaneous perturbations in the objective coefficients and right-hand sides, where the perturbations are modeled in a compact,…

最优化与控制 · 数学 2015-11-10 Guanglin Xu , Samuel Burer

This paper proposes lower bounds on a quantity called $L^p$-norm joint spectral radius, or in short, $p$-radius, of a finite set of matrices. Despite its wide range of applications to, for example, stability analysis of switched linear…

最优化与控制 · 数学 2016-11-04 Masaki Ogura , Victor M. Preciado , Raphaël Jungers

Quantum error-correcting codes (QECCs) require high encoding rate in addition to high threshold unless a sufficiently large number of physical qubits are available. The many-hypercube (MHC) codes defined as the concatenation of the…

量子物理 · 物理学 2026-01-19 Ryota Nakai , Hayato Goto

We consider linear codes over a finite field of odd characteristic, derived from determinantal varieties, obtained from symmetric matrices of bounded ranks. A formula for the weight of a code word is derived. Using this formula, we have…

信息论 · 计算机科学 2023-12-25 Peter Beelen , Trygve Johnsen , Prasant Singh

Some new results are derived concerning random coding error exponents and expurgated exponents for list decoding with a deterministic list size $L$. Two asymptotic regimes are considered, the fixed list-size regime, where $L$ is fixed…

信息论 · 计算机科学 2016-11-17 Neri Merhav

This paper proposes a novel maximum-likelihood (ML) soft-decision decoding framework for linear block codes, termed error-building decoding (EBD). The complete decoding process can be performed using only the parity-check matrix, without…

信息论 · 计算机科学 2026-01-06 Guoda Qiu , Ling Liu , Yuejun Wei , Liping Li

A fundamental problem in quantum coding theory is to determine the maximum size of quantum codes of given block length and distance. A recent work introduced bounds based on semidefinite programming, strengthening the well-known quantum…

量子物理 · 物理学 2026-03-23 Gerard Anglès Munné , Felix Huber

Product codes are widely used in data-storage, optical and wireless applications. Their analytical performance evaluation usually relies on the truncated union bound, which provides a low error rate approximation based on the minimum…

信息论 · 计算机科学 2007-07-16 Mostafa El-Khamy , Roberto Garello