Distributed Demand-aware Network Design using Bounded Square Root of Graphs

Or Peres, Chen Avin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


While the traditional design of network topologies is demand oblivious, recent advances in reconfigurable networks enable real-time and dynamic communication network topologies, e.g., in datacenter networks. This trend motivates a new paradigm where topologies can adjust to the demand they need to serve. We consider the static and distributed version of this network design problem where the input is a request distribution, D (demand matrix), and a bound Δ, on the maximum degree of the output topology. In turn, the objective is to design an (undirected) demand-aware network N of bounded-degree Δ, which minimizes the expected path length (with respect to D).This paper draws a connection between the k-root of graphs and the network design problem and uses forest-decomposition of the demand matrix as the primary methodology. In turn, we provide new algorithms for demand-aware network design, including cases where our algorithms are (order) optimal and improve previous results. In addition, we provide, for the first time and for the case of bounded arboricity, (i) an efficient distributed algorithm for the CONGEST model and (ii) an efficient and PRAM-based parallel algorithm. We also present empirical results on real-world demand matrices where our algorithms produce both low-degree and low-expected path length network designs.

Original languageEnglish
Title of host publicationINFOCOM 2023 - IEEE Conference on Computer Communications
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Electronic)9798350334142
StatePublished - 1 Jan 2023
Event42nd IEEE International Conference on Computer Communications, INFOCOM 2023 - Hybrid, New York City, United States
Duration: 17 May 202320 May 2023

Publication series

NameProceedings - IEEE INFOCOM
ISSN (Print)0743-166X


Conference42nd IEEE International Conference on Computer Communications, INFOCOM 2023
Country/TerritoryUnited States
CityHybrid, New York City

ASJC Scopus subject areas

  • General Computer Science
  • Electrical and Electronic Engineering


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