Spatial Interactions of Peers and Performance of File Sharing Systems
type: Dataset
description: We propose a new model for peer-to-peer networking which takes the network bottlenecks into account beyond the access. This model allows one to cope with key features of P2P networking like degree or locality constraints or the fact that distant peers often have a smaller rate than nearby peers. We show that the spatial point process describing peers in their steady state then exhibits an interesting repulsion phenomenon. We analyze two asymptotic regimes of the peer-to-peer network: the fluid regime and the hard--core regime. We get closed form expressions for the mean (and in some cases the law) of the peer latency and the download rate obtained by a peer as well as for the spatial density of peers in the steady state of each regime, as well as an accurate approximation that holds for all regimes. The analytical results are based on a mix of mathematical analysis and dimensional analysis and have important design implications. The first of them is the existence of a setting where the equilibrium mean latency is a decreasing function of the load, a phenomenon that we call super-scalability.
identifier: Report N°: RR-7713
issued: 2026-05-15T16:37:50.116398
language: en
modified: 2026-05-15T16:37:50.116404
contact point: Organization
  fn: CCSD
keyword: congestion-control
keyword: infoeu-reposemanticsreport
keyword: infoinfo-nicomputer-science-csnetworking-and-internet-architecture-csni
keyword: p2p
keyword: point-processes
keyword: reports
keyword: spatial-birth-and-death-processes
landing page: https://inria.hal.science/inria-00615523

Spatial Interactions of Peers and Performance of File Sharing Systems
type: Distribution
format: HTML
issued: 2026-05-15T16:37:50.142246
modified: 2026-05-15T16:37:50.102526
access URL: https://inria.hal.science/inria-00615523

test_moissonnage_selune
type: Agent