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A generalization of the Gaussian dirty-paper problem to a multiple access setup is considered. There are two additive interference signals, one known to each transmitter but none to the receiver. The rates achievable using Costa's…

信息论 · 计算机科学 2009-04-14 Tal Philosof , Ram Zamir , Uri Erez , Ashish Khisti

In this work it is shown that locally repairable codes (LRCs) can be list-decoded efficiently beyond the Johnson radius for a large range of parameters by utilizing the local error-correction capabilities. The corresponding decoding radius…

信息论 · 计算机科学 2020-09-16 Lukas Holzbaur , Sven Puchinger , Antonia Wachter-Zeh

We study the error probability performance of rotated lattice constellations in frequency-flat Nakagami-$m$ block-fading channels. In particular, we use the sphere lower bound on the underlying infinite lattice as a performance benchmark.…

信息论 · 计算机科学 2007-07-13 Albert Guillen i Fabregas , Emanuele Viterbo

Departing from traditional communication theory where decoding algorithms are assumed to perform without error, a system where noise perturbs both computational devices and communication channels is considered here. This paper studies…

信息论 · 计算机科学 2010-05-31 Lav R. Varshney

In this article we focus on the problem of channel decoding in presence of a-priori information. In particular, assuming that the a-priori information reliability is not perfectly estimated at the receiver, we derive a novel analytical…

信息论 · 计算机科学 2007-11-14 Andrea Abrardo

An upper bound on the error probability of specific lattices, based on their distance-spectrum, is constructed. The derivation is accomplished using a simple alternative to the Minkowski-Hlawka mean-value theorem of the geometry of numbers.…

信息论 · 计算机科学 2013-01-03 Yuval Domb , Meir Feder

We consider the joint source-channel coding problem of sending a Gaussian source on a K-user Gaussian broadcast channel with bandwidth mismatch. A new outer bound to the achievable distortion region is derived using the technique of…

信息论 · 计算机科学 2010-11-22 Chao Tian , Suhas Diggavi , Shlomo Shamai

The most common decision criteria for decoding are maximum likelihood decoding and nearest neighbor decoding. It is well-known that maximum likelihood decoding coincides with nearest neighbor decoding with respect to the Hamming metric on…

信息论 · 计算机科学 2015-06-12 Marcelo Firer , Judy L. Walker

Low-latency communication is one of the most important application scenarios in next-generation wireless networks. Often in communication-theoretic studies latency is defined as the time required for the transmission of a packet over a…

信号处理 · 电气工程与系统科学 2019-09-09 Hasan Basri Celebi , Antonios Pitarokoilis , Mikael Skoglund

This paper establishes information-theoretic limits in estimating a finite field low-rank matrix given random linear measurements of it. These linear measurements are obtained by taking inner products of the low-rank matrix with random…

信息论 · 计算机科学 2015-03-19 Vincent Y. F. Tan , Laura Balzano , Stark C. Draper

The well-known approach of Bose, Ray-Chaudhuri and Hocquenghem and its generalization by Hartmann and Tzeng are lower bounds on the minimum distance of simple-root cyclic codes. We generalize these two bounds to the case of repeated-root…

信息论 · 计算机科学 2015-06-10 Alexander Zeh , Markus Ulmschneider

In this paper, a novel decoding algorithm for low-density parity-check (LDPC) codes based on convex optimization is presented. The decoding algorithm, called interior point decoding, is designed for linear vector channels. The linear vector…

信息论 · 计算机科学 2009-11-13 Tadashi Wadayama

Quantum low-density parity-check codes are a promising candidate for fault-tolerant quantum computing with considerably reduced overhead compared to the surface code. However, the lack of a practical decoding algorithm remains a barrier to…

In this article, we consider the problem of approximating a finite set of data (usually huge in applications) by invariant subspaces generated through a small set of smooth functions. The invariance is either by translations under a…

最优化与控制 · 数学 2023-11-22 Davide Barbieri , Eugenio Hernández , Carlos Cabrelli , Ursula Molter

We analyze the multivariate generalization of Howgrave-Graham's algorithm for the approximate common divisor problem. In the m-variable case with modulus N and approximate common divisor of size N^beta, this improves the size of the error…

数论 · 数学 2012-03-15 Henry Cohn , Nadia Heninger

We propose a modified iterative bounded distance decoding of product codes. The proposed algorithm is based on exchanging hard messages iteratively and exploiting channel reliabilities to make hard decisions at each iteration. Performance…

信息论 · 计算机科学 2018-05-15 Alireza Sheikh , Alexandre Graell i Amat , Gianluigi Liva

The fundamental and natural connection between the infinite constellation (IC) dimension and the best diversity order it can achieve is investigated in this paper. In the first part of this work we develop an upper bound on the diversity…

信息论 · 计算机科学 2015-03-19 Yair Yona , Meir Feder

Local Fourier analysis is a commonly used tool for the analysis of multigrid and other multilevel algorithms, providing both insight into observed convergence rates and predictive analysis of the performance of many algorithms. In this…

数值分析 · 数学 2021-08-06 Jed Brown , Yunhui He , Scott MacLachlan

We study linear codes that maximize minimum distance subject to arbitrary support constraints on the parity-check matrix. Such constraints arise naturally in the design of LDPC codes, locally repairable codes, and hardware-constrained…

信息论 · 计算机科学 2026-05-12 Barron Han , Hikmet Yildiz , Babak Hassibi

List-decoding and list-recovery are important generalizations of unique decoding that received considerable attention over the years. However, the optimal trade-off among list-decoding (resp. list-recovery) radius, list size, and the code…

信息论 · 计算机科学 2021-12-13 Eitan Goldberg , Chong Shangguan , Itzhak Tamo