中文
相关论文

相关论文: On the Impact of a Single Edge on the Network Codi…

200 篇论文

We consider the impact of incomplete information on incentives for node cooperation in parallel relay networks with one source node, one destination node, and multiple relay nodes. All nodes are selfish and strategic, interested in…

计算机科学与博弈论 · 计算机科学 2011-01-24 Hongda Xiao , Edmund M. Yeh

We study finite alphabet channels with Unit Memory on the previous Channel Outputs called UMCO channels. We identify necessary and sufficient conditions, to test whether the capacity achieving channel input distributions with feedback are…

信息论 · 计算机科学 2017-01-05 Christos K. Kourtellaris , Charalambos D. Charalambous , Ioannis Tzortzis

The "power of choice" has been shown to radically alter the behavior of a number of randomized algorithms. Here we explore the effects of choice on models of tree and network growth. In our models each new node has k randomly chosen…

统计力学 · 物理学 2009-11-13 Raissa M. D'Souza , Paul L. Krapivsky , Cristopher Moore

We consider the problem of computing the capacity of a coded, multicast network over a small alphabet. We introduce a novel approach to this problem based on mixed integer programming. As an application of our approach, we recover, extend…

信息论 · 计算机科学 2022-12-15 Christopher Hojny , Altan B. Kilic , Alberto Ravagnani

In this paper, we study the contribution of network coding (NC) in improving the multicast capacity of random wireless ad hoc networks when nodes are endowed with multi-packet transmission (MPT) and multi-packet reception (MPR)…

信息论 · 计算机科学 2008-09-23 Zheng Wang , Shirish Karande , Hamid R. Sadjadpour , J. J. Garcia-Luna-Aceves

Targeted hub removal is known to weaken connectivity in heterogeneous networks. We show that in Barab\'asi--Albert networks the same intervention can also shift Watts threshold dynamics across the cascade critical point. For BA networks…

物理与社会 · 物理学 2026-03-13 Federico Hernan Cachero Sanchez

A discrete-time single-user scalar channel with temporally correlated Rayleigh fading is analyzed. There is no side information at the transmitter or the receiver. A simple expression is given for the capacity per unit energy, in the…

信息论 · 计算机科学 2007-07-16 Vignesh Sethuraman , Bruce Hajek

Throughput capacity of large ad hoc networks has been shown to scale adversely with the size of network $n$. However the need for the nodes to find or repair routes has not been analyzed in this context. In this paper, we explicitly take…

网络与互联网体系结构 · 计算机科学 2022-02-22 Eugene Perevalov , Rick S. Blum , Xun Chen , Anthony Nigara

This paper proves the separation between source-network coding and channel coding in networks of noisy, discrete, memoryless channels. We show that the set of achievable distortion matrices in delivering a family of dependent sources across…

信息论 · 计算机科学 2016-11-17 Shirin Jalali , Michelle Effros

Motivated by distributed storage applications, we investigate the degree to which capacity achieving encodings can be efficiently updated when a single information bit changes, and the degree to which such encodings can be efficiently…

信息论 · 计算机科学 2013-10-08 Arya Mazumdar , Venkat Chandar , Gregory W. Wornell

We consider the problem of error correction in a network where the errors can occur only on a proper subset of the network edges. For a generalization of the so-called Diamond Network we consider lower and upper bounds for the network's…

信息论 · 计算机科学 2024-09-20 Sascha Kurz

The width of a neural network matters since increasing the width will necessarily increase the model capacity. However, the performance of a network does not improve linearly with the width and soon gets saturated. In this case, we argue…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Shuai Zhao , Liguang Zhou , Wenxiao Wang , Deng Cai , Tin Lun Lam , Yangsheng Xu

We study the stability of network communication after removal of $q=1-p$ links under the assumption that communication is effective only if the shortest path between nodes $i$ and $j$ after removal is shorter than $a\ell_{ij} (a\geq1)$…

统计力学 · 物理学 2009-11-13 Eduardo López , Roni Parshani , Reuven Cohen , Shai Carmi , Shlomo Havlin

We experimentally achieve a 19% capacity gain per Watt of electrical supply power in a 12-span link by eliminating gain flattening filters and optimizing launch powers using machine learning by deep neural networks in a massively parallel…

Spreading of either information or matter can often be treated as a network problem. It can be of great importance to be able to estimate the likelihood that spreading through a network reaches essentially the entire network while still not…

无序系统与神经网络 · 物理学 2009-03-09 Tomas Alarcon , Henrik Jeldtoft Jensen

In this paper, we investigate optimal coding strategies for a class of linear deterministic relay networks. The network under study is a relay network, with one source, one destination, and two relay nodes. Additionally, there is a…

信息论 · 计算机科学 2010-01-14 S. M. Hossein Tabatabaei Yazdi , Mohammad Reza Aref

In a topological structure affected by geographical constraints on liking, the connectivity is weakened by constructing local stubs with small cycles, a something of randomness to bridge them is crucial for the robust network design. In…

计算物理 · 物理学 2009-11-13 Y. Hayashi , J. Matsukubo

This work considers the multiple-access multicast error-correction scenario over a packetized network with $z$ malicious edge adversaries. The network has min-cut $m$ and packets of length $\ell$, and each sink demands all information from…

In this paper we develop network protection strategies against a single link failure in optical networks. The motivation behind this work is the fact that $%70$ of all available links in an optical network suffers from a single link…

信息论 · 计算机科学 2016-11-18 Salah A. Aly , Ahmed E. Kamal

This paper shows how network coding and superdense coding can be combined to increase the classical data throughput by a factor $2-\epsilon$ (for arbitrarily small $\epsilon > 0$) compared to the maximum that could be achieved using either…

量子物理 · 物理学 2020-07-01 Steven Herbert