02036nas a2200289   4500000000100000008004100001260000900042653001300051653002700064653001200091653002300103653002700126653002200153100002000175700001300195700001200208700001700220700001500237700001800252700002500270245007500295856005900370300001000429490000700439520128600446022001401732       2016                            d  cJuly10aInternet10aPeer-to-peer computing10aRouting10aTelecommunications10aWireless communication10awireless networks1 aLeandro Navarro1 aR. Vinas1 aC. Barz1 aJ. Bonicioli1 aBart Braem1 aFelix Freitag1 aI. Vilata-i-Balaguer00aAdvances in wireless community networks with the community-lab testbed  uhttp://people.ac.upc.edu/leandro/pubs/comsoc-final.pdf  a20-270 v543 aBeyond traditional telecom providers, citizens and organizations pool their own resources and coordinate in order to build local network infrastructures to address the digital divide in many parts of the world. These crowdsourced network infrastructures can be self-organized and shared by a community for the collective benefit of its members. Several of these networks have developed open, free, and neutral agreements, and are governed as a common-pool resource: Community networks. These are built using a variety of commodity wireless hardware (e.g. Wi-Fi long range point to point links, Wi-Fi and GSM access points, and mesh networks), sometimes optical fibre links, heterogeneous nodes, routing protocols and applications. A group of researchers, developers and community networks developed the Community-Lab testbed, and for the last five years have worked together to overcome obstacles, improve the technologies, tools and operational models being used, as well as model best practices for more effective and sustainable community networks. This article presents the challenges for experimentation, the testbeds built, results, lessons learned and the impact of that work to place wireless community networks as one sustainable way towards an Internet accessible to All.  a0163-6804