Alternative Network Deployments. Taxonomy, characterization, technologies and architectures

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Global Access to the Internet for All                    J. Saldana, Ed.
Internet-Draft                                    University of Zaragoza
Intended status: Informational                            A. Arcia-Moret
Expires: January 2, 2016                         University of Cambridge
                                                                B. Braem
                                                         E. Pietrosemoli
                                                         A. Sathiaseelan
                                                 University of Cambridge
                                                              M. Zennaro
                                                        Abdus Salam ICTP
                                                            July 1, 2015

     Alternative Network Deployments.  Taxonomy, characterization,
                     technologies and architectures


   This document presents a taxonomy of "Alternative Network
   deployments", and a set of definitions and shared properties.  It
   also discusses the technologies employed in these network
   deployments, and their differing architectural characteristics.

   The term "Alternative Network Deployments" includes a set of network
   access models that have emerged in the last decade with the aim of
   bringing Internet connectivity to people, using topological,
   architectural and business models different from the so-called
   "traditional" ones, where a company deploys or leases the network
   infrastructure for connecting the users, who pay a subscription fee
   to be connected and make use of it.

   Several initiatives throughout the world have built large scale
   alternative Networks, using predominantly wireless technologies
   (including long distance) due to the reduced cost of using the
   unlicensed spectrum.  Wired technologies such as fiber are also used
   in some of these alternate networks.  There are several types of
   alternate networks: community networks, which are self-organized and
   decentralized networks wholly owned by the community; networks owned
   by individuals who act as wireless internet service providers
   (WISPs); networks owned by individuals but leased out to network
   operators who use them as a low-cost medium to reach the underserved
   population, and finally there are networks that provide connectivity
   by sharing wireless resources of the users.

Saldana, et al.          Expires January 2, 2016                [Page 1]
Internet-Draft       Alternative Network Deployments           July 2015

   The emergence of these networks can be motivated by different causes
   such as the reluctance, or the impossibility, of network operators to
   provide wired and cellular infrastructures to rural/remote areas.  In
   these cases, the networks have self sustainable business models that
   provide more localized communication services as well as Internet
   backhaul support through peering agreements with traditional network
   operators.  Some other times, networks are built as a complement and
   an alternative to commercial Internet access provided by
   "traditional" network operators.

   The present classification considers different existing network
   models such as Community Networks, open wireless services, user-
   extensible services, traditional local Internet Service Providers
   (ISPs), new global ISPs, etc.  Different criteria are used in order
   to build a classification as e.g., the ownership of the equipment,
   the way the network is organized, the participatory model, the
   extensibility, if they are driven by a community, a company or a
   local stakeholder (public or private), etc.

   According to the developed taxonomy, a characterization of each kind
   of network is presented in terms of specific network characteristics
   related to architecture, organization, etc.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at

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   This Internet-Draft will expire on January 2, 2016.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
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