{"id":13422,"date":"2014-05-30T09:40:43","date_gmt":"2014-05-30T14:40:43","guid":{"rendered":"http:\/\/bucktownbell.com\/?p=13422"},"modified":"2014-05-31T19:21:20","modified_gmt":"2014-06-01T00:21:20","slug":"how-mit-and-caltechs-coding-breakthrough-could-accelerate-mobile-network-speeds","status":"publish","type":"post","link":"http:\/\/bucktownbell.com\/?p=13422","title":{"rendered":"How MIT and Caltech&#8217;s coding breakthrough could accelerate mobile network speeds"},"content":{"rendered":"<blockquote><p>An RLNC transmission can recover from errors with neither sender nor receiver retaining and updating transmission-state information and requesting lost packets to be retransmitted. This is because RLNC can recreate any packet lost on the receiving side from a later sequenced packet. In over-simplified terms, each RLNC encoded packet sent is encoded using the immediately earlier sequenced packet and randomly generated coefficients, using a linear algebra function. The combined packet length is no longer than either of the two packets from which it is composed. When a packet is lost, the missing packet can be mathematically derived from a later-sequenced packet that includes earlier-sequenced packets and the coefficients used to encode the packet.<\/p>\n<p>Since the RLNC encoding sender doesn\u2019t need to listen for acknowledgements of successful transmission and perhaps retransmit, the sender can continuously transmit at near-wire speed optimized for latency and network throughput.<\/p><\/blockquote>\n<p>via <a href=\"http:\/\/www.networkworld.com\/community\/node\/85496\">How MIT and Caltech&#8217;s coding breakthrough could accelerate mobile network speeds<\/a>.<\/p>\n<p><strong>Update<\/strong>:\u00a0 After posting this I remembered I had read about an algorithm recreating earlier lost packets from future packets.\u00a0 So I clicked on the mit tag and on 10\/25\/2012 I posted this blurb:\u00a0 <a href=\"http:\/\/bucktownbell.com\/?p=7874\">A Bandwidth Breakthrough<\/a><\/p>\n<blockquote><p>&#8230; The technology transforms the way packets of data are sent. Instead of sending packets, it sends algebraic equations that describe series of packets. <strong>So if a packet goes missing, instead of asking the network to resend it, the receiving device can solve for the missing one itself. &#8230;<\/strong><\/p><\/blockquote>\n<p>That must mean they&#8217;re still working on it.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>An RLNC transmission can recover from errors with neither sender nor receiver retaining and updating transmission-state information and requesting lost packets to be retransmitted. This is because RLNC can recreate any packet lost on the receiving side from a later &hellip; <a href=\"http:\/\/bucktownbell.com\/?p=13422\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[110],"tags":[387,880,323,78],"class_list":["post-13422","post","type-post","status-publish","format-standard","hentry","category-networking","tag-mit","tag-mobile-data","tag-protocols","tag-wifi"],"_links":{"self":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/13422","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13422"}],"version-history":[{"count":3,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/13422\/revisions"}],"predecessor-version":[{"id":13427,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=\/wp\/v2\/posts\/13422\/revisions\/13427"}],"wp:attachment":[{"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13422"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/bucktownbell.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}