Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id uBQJ5tq1021085 for ; Mon, 26 Dec 2016 20:05:56 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cLaXm-0003N7-RZ for rs_out_1@blacksheep.org; Mon, 26 Dec 2016 19:02:46 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cLaXm-0003My-JE for rsgb_lf_group@blacksheep.org; Mon, 26 Dec 2016 19:02:46 +0000 Received: from smtp-auth2-184.primus.ca ([216.254.140.184] helo=tor-smtp-04.primus.ca) by relay1.thorcom.net with esmtp (Exim 4.87) (envelope-from ) id 1cLaXj-0005JV-Kj for rsgb_lf_group@blacksheep.org; Mon, 26 Dec 2016 19:02:45 +0000 Received: from dyn-dsl-98-124-15-212.nrtco.net ([98.124.15.212] helo=Bigmachine.magma.ca) by tor-smtp-04.primus.ca with esmtpa (Exim 4.84) (envelope-from ) id 1cLaXh-0003Dr-1h for rsgb_lf_group@blacksheep.org; Mon, 26 Dec 2016 14:02:41 -0500 X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Mon, 26 Dec 2016 14:02:47 -0500 To: rsgb_lf_group@blacksheep.org From: Bill de Carle In-Reply-To: <5860C842.90809@abelian.org> References: <5860C842.90809@abelian.org> Mime-Version: 1.0 X-Authenticated: ve2iq - dyn-dsl-98-124-15-212.nrtco.net (Bigmachine.magma.ca) [98.124.15.212] X-Scan-Signature: 6ffbd2c9950b634d6cc91f9565b01a8b Message-Id: Subject: Re: LF: Article on forward error correction Content-Type: text/plain; charset="us-ascii"; format=flowed X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.75 Status: O X-Status: X-Keywords: X-UID: 9963 There should be a "Nicholson limit" for how well something of a certain complexity can be explained using a given number of words with a high probability of being understood correctly. Your paper is about as good as it could ever get. Thanks Paul. Bill VE2IQ At 02:35 AM 12/26/2016, Paul wrote: >I wrote a non-mathematical introductory article about how >forward error correction works. > >There's a lot of material on the web about FEC but most >of it is very technical and tends to concentrate on one or >another particular coding scheme. I couldn't find anything >that demonstrates and really explains in simple terms the >essential principle of it. > >So I thought I'd try to write something, perhaps to see if >I can understand it myself. > >The article should appeal to anyone who's wondered how 'coding' >a message, which increases its bandwidth and reduces its S/N, >can actually lead to greatly improved communications. > > http://abelian.org/fec/pn161218/ > >or in pdf format > > http://abelian.org/fec/pn161218.pdf > >Whether I've succeeded or not, the reader will have to judge. > >-- >Paul Nicholson >-- >