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data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-Background" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Background"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Background</span> </div> </a> <ul id="toc-Background-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-FabFi_around_the_world" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#FabFi_around_the_world"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>FabFi around the world</span> </div> </a> <button aria-controls="toc-FabFi_around_the_world-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle FabFi around the world subsection</span> </button> <ul id="toc-FabFi_around_the_world-sublist" class="vector-toc-list"> <li id="toc-Afghanistan" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Afghanistan"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Afghanistan</span> </div> </a> <ul id="toc-Afghanistan-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Kenya" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Kenya"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Kenya</span> </div> </a> <ul id="toc-Kenya-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Future_sites_and_testbeds" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Future_sites_and_testbeds"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Future sites and testbeds</span> </div> </a> <ul id="toc-Future_sites_and_testbeds-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" 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ambox-content ambox-multiple_issues compact-ambox" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/40px-Ambox_important.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/60px-Ambox_important.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/b/b4/Ambox_important.svg/80px-Ambox_important.svg.png 2x" data-file-width="40" data-file-height="40" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span"><div class="multiple-issues-text mw-collapsible"><b>This article has multiple issues.</b> Please help <b><a href="/wiki/Special:EditPage/FabFi" title="Special:EditPage/FabFi">improve it</a></b> or discuss these issues on the <b><a href="/wiki/Talk:FabFi" title="Talk:FabFi">talk page</a></b>. <small><i>(<a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove these messages</a>)</i></small> <div class="mw-collapsible-content"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="box-Primary_sources plainlinks metadata ambox ambox-content ambox-Primary_sources" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" 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href="https://www.google.com/search?&q=%22FabFi%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22FabFi%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22FabFi%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22FabFi%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">June 2012</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="box-More_citations_needed plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/FabFi" title="Special:EditPage/FabFi">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22FabFi%22">"FabFi"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22FabFi%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22FabFi%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22FabFi%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22FabFi%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22FabFi%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">June 2012</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> </div> </div><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p><b>FabFi</b> is an <a href="/wiki/Open-source_software" title="Open-source software">open-source</a>, city-scale, wireless <a href="/wiki/Mesh_networking" title="Mesh networking">mesh networking</a> system.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> It is an inexpensive framework for sharing wireless internet from a central provider across a town or city. It was developed originally by <a href="/wiki/Fab_lab" title="Fab lab">FabLab, Jalalabad</a> to provide high-speed internet to parts of <a href="/wiki/Jalalabad,_Afghanistan" class="mw-redirect" title="Jalalabad, Afghanistan">Jalalabad, Afghanistan</a>. It is also designed for high performance across multiple hops. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Background">Background</h2></div> <p>In January 2009, the Jalalabad FabLab wanted to bring high-speed internet to a village, hospital, university, and an <a href="/wiki/NGO" class="mw-redirect" title="NGO">NGO</a> in the city. It used this low-cost design, building on a system designed to track sheep in <a href="/wiki/Norway" title="Norway">Norway</a>. The system could be easily extended to other villages and towns, and was designed to work consistently through heavy rain, smog, and trees. </p><p>Community members who used the fab lab received training and experience with the system for a month, after which they were given control and maintenance of it. Many locations began to join the initial nodes, expanding the mesh over the coming months. The longest link in the system was set up early on, between the FabLab and the water tower at the public hospital in Jalalabad. </p> <div class="mw-heading mw-heading2"><h2 id="FabFi_around_the_world">FabFi around the world</h2></div> <div class="mw-heading mw-heading3"><h3 id="Afghanistan">Afghanistan</h3></div> <p>Jalalabad has 45 remote FabFi <a href="/wiki/Node_(networking)" title="Node (networking)">nodes</a>, with the longest link spanning 6 km. The total data throughput is 11.5 Mbit/s. The system is extensible by anyone without getting central permission, simply by adding a node and pointing it in the right direction. </p><p>The materials needed to make an endpoint link are $60US, and are available locally. An endpoint node that provides 360-degree coverage of the area near it might use more hardware and cost closer to $150US. </p><p>Additional sites in Afghanistan are being considered. </p> <div class="mw-heading mw-heading3"><h3 id="Kenya">Kenya</h3></div> <p>Kenya has 50 remote FabFi nodes deployed across three sites. The longest link among them is 3.5 km. The data throughput across roughly 2.5 km, with up to 6 <a href="/wiki/Hop_(telecommunications)" title="Hop (telecommunications)">hops</a>, exceeds 30 Mbit/s. </p><p>This system is designed to get <a href="/wiki/Wi-Fi" title="Wi-Fi">Wi-Fi</a> directly to people's homes, and manages users and billing - a feature not yet rolled back into the global codebase or that used in Afghanistan. </p> <div class="mw-heading mw-heading3"><h3 id="Future_sites_and_testbeds">Future sites and testbeds</h3></div> <p>As of mid-2011<sup class="plainlinks noexcerpt noprint asof-tag update" style="display:none;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=FabFi&action=edit">[update]</a></sup>, FabFi systems were being tested in the United States<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (September 2012)">citation needed</span></a></i>]</sup>. </p> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div> <ul><li>A <a rel="nofollow" class="external text" href="https://web.archive.org/web/20111119205258/http://fabfi.fabfolk.com/techsummary/">technical summary</a> of how FabFi works</li> <li><a rel="nofollow" class="external text" href="https://code.google.com/p/fabfi/wiki/WikiHome?tm=6">FabFi code wiki</a></li> <li>How to build: a <a rel="nofollow" class="external text" href="https://code.google.com/p/fabfi/wiki/FabfiServer">server</a> | <a rel="nofollow" class="external text" href="https://code.google.com/p/fabfi/wiki/FabfiNodes">nodes</a> | <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120204135614/http://fabfi.fabfolk.com/distribution/">reflectors</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://code.google.com/p/fabfi/wiki/WikiHome">FabFi project home</a> on Google Code</span> </li> </ol></div></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; 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