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Building the Wireless Internet Infrastructure: From Cordless Ethernet Archipelagos to Wireless Grids

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TLDR
In this paper, the authors discuss the developpement ascendant d'une nouvelle infrastructure d'Internet sans-fil induit par les utilisateurs achetant des equipements radio bon marche for creer des reseaux locaux sans fil sur des frequences non attribuees.
Abstract
L'infrastructure de communication decentralisee peut-elle se substituer de facon significative aux systemes traditionnels centralises qui ont toujours predomine ? Cet article etudie le developpement ascendant d'une nouvelle infrastructure d'Internet sans fil induit par les utilisateurs achetant des equipements radio bon marche pour creer des reseaux locaux sans fil sur des frequences non attribuees. Utilises principalement de nos jours en vue d'etendre la portee des connexions Intemet haut debit de quelque 4 metres, ces reseaux sont de plus en plus utilises dans les lieux publics pour permettre aux voyageurs d'affaires et aux mordus du sans fil de se connecter. Il en resulte un patchwork de reseaux sans fil evoquant des archipels sans câble dans le vaste ocean d'une infrastructure câblee. Cependant, alors que la densite de ces reseaux augmente, il est tout a fait possible de s'imaginer un futur ou les appareils sans fil communiqueraient entre eux, contournant en majorite les infrastructures câblees existantes pour l'echange de trafics. Cet article souleve deux questions apparentees relatives a une telle vision. La premiere est de savoir si ces efforts de decentralisation pour creer un reseau sans fil representent ou non une alternative au processus traditionnel centralise avec lequel la plupart des reseaux de communication a grande echelle ont ete construits. La seconde se refere aux defis technologiques, organisationnels et politiques en relation avec la construction du reseau sans fil. Ce reseau sans fil sera un environnement de reseaux, dynamique et adapte, peuple de petits peripheriques mobiles, propriete de nombreuses personnes et organisations communiquant entre elles au travers des liaisons volatiles sans fil. De nouvelles dispositions seront necessaires en vue, entre autres, d'assurer la confidentialite, de partager les ressources, de gerer le trafic et de garantir une certaine qualite de service.

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An initial assessment of cooperative action in Wi-Fi networking

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