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We show that fully connected two-hop wireless networks with K sources, K relays and K destinations have K degrees of freedom both in the case of time-varying channel coefficients and in the case of constant channel coefficients (in which…

Information Theory · Computer Science 2013-05-16 Ilan Shomorony , A. Salman Avestimehr

The generalized $k$-connectivity of a graph $G$, denoted by $\kappa_k(G)$, is the minimum number of internally edge disjoint $S$-trees for any $S\subseteq V(G)$ with $|S|=k$. The generalized $k$-connectivity is a natural extension of the…

Combinatorics · Mathematics 2024-05-23 Jing Wang , Xidao Luan , Yuanqiu Huang

Phylogenetic networks are a generalization of phylogenetic trees that are used to represent reticulate evolution. Unrooted phylogenetic networks form a special class of such networks, which naturally generalize unrooted phylogenetic trees.…

Populations and Evolution · Quantitative Biology 2016-01-11 Katharina T. Huber , Vincent Moulton , Taoyang Wu

In this paper, we study systems of distributed entities that can actively modify their communication network. This gives rise to distributed algorithms that apart from communication can also exploit network reconfiguration in order to carry…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-03-09 Othon Michail , George Skretas , Paul G. Spirakis

The Dragonfly Spectral Line Mapper (DSLM) is a semi-autonomous, distributed-aperture based telescope design, featuring a modular setup of 120 Canon telephoto lenses, and equal numbers of ultra-narrowband filters, detectors, and other…

Instrumentation and Methods for Astrophysics · Physics 2024-06-24 Imad Pasha , Seery Chen , Deborah Lokhorst , William P. Bowman , Zili Shen , Qing Liu , Evgeni I. Malakhov , Roberto Abraham , Pieter G. van Dokkum

We present PolarStar, a novel family of diameter-3 network topologies derived from the star product of low-diameter factor graphs. PolarStar gives the largest known diameter-3 network topologies for almost all radixes, thus providing the…

Networking and Internet Architecture · Computer Science 2024-08-07 Kartik Lakhotia , Laura Monroe , Kelly Isham , Maciej Besta , Nils Blach , Torsten Hoefler , Fabrizio Petrini

Dynamic dependability models, such as dynamic fault trees (DFTs) and dynamic reliability block diagrams (DRBDs), are introduced to overcome the modeling limitations of traditional models. Recently, higher-order logic (HOL) formalizations of…

Logic in Computer Science · Computer Science 2019-10-25 Yassmeen Elderhalli , Osman Hasan , Sofiene Tahar

Dragonfly class of networks are considered as promising interconnects for next-generation supercomputers. While Dragonfly+ networks offer more path diversity than the original Dragonfly design, they are still prone to performance…

Networking and Internet Architecture · Computer Science 2024-06-24 Yao Kang , Xin Wang , Neil McGlohon , Misbah Mubarak , Sudheer Chunduri , Zhiling Lan

Achievable degrees-of-freedom (DoF) of the large-scale interfering two-way relay network is investigated. The network consists of $K$ pairs of communication nodes (CNs) and $N$ relay nodes (RNs). It is assumed that $K\ll N$ and each pair of…

Information Theory · Computer Science 2016-11-17 Hyun Jong Yang , Won-Yong Shin , Bang Chul Jung

The network connectivity in a group of cooperative robots can be easily broken if one of them loses its connectivity with the rest of the group. In case of having robustness with respect to one-robot-fail, the communication network is…

Robotics · Computer Science 2016-08-09 Mehran Zareh , Lorenzo Sabattini , Cristian Secchi

The scalability of quantum computing is currently limited by physical, technological, and architectural constraints that hinder the integration of a large number of qubits within a single quantum processor. Distributed quantum computing…

Quantum Physics · Physics 2026-05-12 F. Javier Cardama , Jorge Vázquez-Pérez , Tomás F. Pena , Andrés Gómez

Integrating optical circuit switches in data-centers is an on-going research challenge. In recent years, state-of-the-art solutions introduce hybrid packet/circuit architectures for different optical circuit switch technologies, control…

Networking and Internet Architecture · Computer Science 2020-09-01 Yaniv Ben-Itzhak , Cosmin Caba , Liran Schour , Shay Vargaftik

Highly dynamic networks are characterized by frequent changes in the availability of communication links. These networks are often partitioned into several components, which split and merge unpredictably. We present a distributed algorithm…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-10-25 Matthieu Barjon , Arnaud Casteigts , Serge Chaumette , Colette Johnen , Yessin M. Neggaz

The 3D Discrete Fourier Transform (DFT) is a technique used to solve problems in disparate fields. Nowadays, the commonly adopted implementation of the 3D-DFT is derived from the Fast Fourier Transform (FFT) algorithm. However, evidence…

Computational Physics · Physics 2024-07-10 Nitin Malapally , Viacheslav Bolnykh , Estela Suarez , Paolo Carloni , Thomas Lippert , Davide Mandelli

The diversity multiplexing tradeoff of a general two-hop asynchronous cooperative network is examined for various relaying protocols such as non-orthogonal selection decode-and-forward (NSDF), orthogonal selection decode-and-forward (OSDF),…

Information Theory · Computer Science 2011-02-21 Mehdi Torbatian , Mohamed Oussama Damen

Distribution network reconfiguration (DNR) is a tool used by operators to balance line load flows and mitigate losses. As distributed generation and flexible load adoption increases, the impact of DNR on the security, efficiency, and…

This paper studies the setup of a multiple-relay network in which $K$ half-duplex multiple-antenna relays assist in the transmission between a/several multiple-antenna transmitter(s) and a multiple-antenna receiver. Each two nodes are…

Information Theory · Computer Science 2008-06-08 Shahab Oveis Gharan , Alireza Bayesteh , Amir K. Khandani

We investigate the dynamics and the stability of the incompressible flow past a corrugated dragonfly-inspired airfoil in the two-dimensional (2D) $\alpha-Re$ parameter space, where $\alpha$ is the angle of attack and $Re$ is the Reynolds…

Fluid Dynamics · Physics 2025-04-16 Alessandro Chiarini , Gabriele Nastro

With 5G networking, deterministic guarantees are emerging as a key enabler. In this context, we present a scalable Damper-based architecture for Large-scale Deterministic IP Networks (D-LDN) that meets required bounds on end-to-end delay…

Networking and Internet Architecture · Computer Science 2022-09-27 M. Yassine Naghmouchi , Shoushou Ren , Paolo Medagliani , Sébastien Martin , Jérémie Leguay

We introduce a decentralized replication strategy for peer-to-peer file exchange based on exhaustive exploration of the neighborhood of any node in the network. The replication scheme lets the replicas evenly populate the network mesh,…

Networking and Internet Architecture · Computer Science 2008-12-18 Nicolas Bonnel , Gilbas Ménier , Pierre-François Marteau