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Lattice reduction is a NP-hard problem well known in computer science and cryptography. The Lenstra-Lenstra-Lovasz (LLL) algorithm based on the calculation of orthogonal Gram-Schmidt (GS) bases is efficient and gives a good solution in…

Data Structures and Algorithms · Computer Science 2022-05-10 Cyril Cayron

Recently, lattice reduction (LR) technique has caught great attention for multi-input multi-output (MIMO) receiver because of its low complexity and high performance. However, when the number of antennas is large, LR-aided linear detectors…

Information Theory · Computer Science 2013-04-04 Qi Zhou , Xiaoli Ma

Lenstra-Lenstra-Lovasz (LLL) algorithm, which is one of the lattice reduction (LR) techniques, has been extensively used to obtain better basis of the channel matrix. In this paper, we jointly apply Seysen's lattice reduction algorithm…

Information Theory · Computer Science 2011-01-06 HongSun An , Manar Mohaisen , KyungHi Chang

In this paper, we show that for each lattice basis, there exists an equivalent basis which we describe as ``strongly reduced''. We show that bases reduced in this manner exhibit rather ``short'' basis vectors, that is, the length of the…

Number Theory · Mathematics 2023-05-02 Christian Porter

A lattice reduction is an algorithm that transforms the given basis of the lattice to another lattice basis such that problems like finding a shortest vector and closest vector become easier to solve. Some of the famous lattice reduction…

Data Structures and Algorithms · Computer Science 2019-12-05 Mithilesh Kumar

Lattice reduction algorithms have numerous applications in number theory, algebra, as well as in cryptanalysis. The most famous algorithm for lattice reduction is the LLL algorithm. In polynomial time it computes a reduced basis with…

Cryptography and Security · Computer Science 2012-12-21 Felix Fontein , Michael Schneider , Urs Wagner

The Hermite-Korkine-Zolotarev reduction plays a central role in strong lattice reduction algorithms. By building upon a technique introduced by Ajtai, we show the existence of Hermite-Korkine-Zolotarev reduced bases that are arguably least…

Number Theory · Mathematics 2008-01-24 Guillaume Hanrot , Damien Stehlé

The Lenstra-Lenstra-Lovasz (LLL) reduction has wide applications in digital communications. It can greatly improve the speed of the sphere decoding (SD) algorithms for solving an integer least squares (ILS) problem and the performance of…

Information Theory · Computer Science 2012-04-09 Xiaohu Xie , Xiao-Wen Chang , Mazen Al Borno

Lattice reduction algorithms have numerous applications in number theory, algebra, as well as in cryptanalysis. The most famous algorithm for lattice reduction is the LLL algorithm. In polynomial time it computes a reduced basis with…

Cryptography and Security · Computer Science 2013-07-30 Felix Fontein , Michael Schneider , Urs Wagner

Zero-forcing (ZF) decoder is a commonly used approximation solution of the integer least squares problem which arises in communications and many other applications. Numerically simulations have shown that the LLL reduction can usually…

Information Theory · Computer Science 2018-07-24 Jinming Wen , Chao Tong , Shi Bai

Lattice reduction (LR) is a preprocessing technique for multiple-input multiple-output (MIMO) symbol detection to achieve better bit error-rate (BER) performance. In this paper, we propose a customized homogeneous multiprocessor for LR. The…

Information Theory · Computer Science 2015-01-21 Shahriar Shahabuddin , Janne Janhunen , Amanullah Ghazi , Zaheer Khan , Markku Juntti

Lattices are a popular field of study in mathematical research, but also in more practical areas like cryptology or multiple-input/multiple-output (MIMO) transmission. In mathematical theory, most often lattices over real numbers are…

Information Theory · Computer Science 2022-08-19 Sebastian Stern , Cong Ling , Robert F. H. Fischer

Lattice reduction is a combinatorial optimization problem aimed at finding the most orthogonal basis in a given lattice. The Lenstra-Lenstra-Lov\'asz (LLL) algorithm is the best algorithm in the literature for solving this problem. In light…

Machine Learning · Computer Science 2025-02-11 Giovanni Luca Marchetti , Gabriele Cesa , Pratik Kumar , Arash Behboodi

In article present measure code distance algorithm of binary and ternary linear block code using block Korkin-Zolotarev (BKZ). Proved the upper bound on scaling constant for measure code distance of non-systematic linear block code using…

Information Theory · Computer Science 2015-11-03 Vasily Usatyuk

This article present a application of Block Korkin---Zolotarev lattice reduction method for Lattice Reduction---Aided decoding under MIMO---channel. We give a upper bound estimate on the lattice reduced by block Korkin---Zolotarev method…

Discrete Mathematics · Computer Science 2014-05-15 Vasily Usatyuk

We give a generalisation of the Lenstra-Lenstra-Lov\'asz (LLL) lattice-reduction algorithm that is valid for an arbitrary (split, semisimple) reductive group $G$. This can be regarded as `lattice reduction with symmetries'. We make this…

Number Theory · Mathematics 2025-02-03 Beth Romano , Jack A. Thorne

The Korkine--Zolotareff (KZ) reduction, and its generalisations, are widely used lattice reduction strategies in communications and cryptography. The KZ constant and Schnorr's constant were defined by Schnorr in 1987. The KZ constant can be…

Information Theory · Computer Science 2022-04-19 Jinming Wen , Xiao-Wen Chang

Let $\lambda_k$ denote the $k$-th successive minimum of a lattice $L$. We study properties of the lengths of certain bases of $L$. If $v_1, \dots v_n$ is a basis which is reduced in the sense of Minkowski we show that $\lvert v_k \rvert^2…

Metric Geometry · Mathematics 2021-08-24 Shvo Regavim

This article presets a review of lattice lattice basis reduction types. Paper contains the main five types of lattice basis reduction: size reduced (weak Hermit), c-reduced, Lovasz condition, Hermit-Korkin-Zolotarev, Minkowski reduced. The…

Discrete Mathematics · Computer Science 2012-11-13 Vasiliy Usatyuk

A linear programming (LP) based framework is presented for obtaining converses for finite blocklength lossy joint source-channel coding problems. The framework applies for any loss criterion, generalizes certain previously known converses,…

Information Theory · Computer Science 2017-05-04 Sharu Theresa Jose , Ankur A. Kulkarni