Hi Tom, Actually we have control at both the sending and receiving end, so other types of FEC may be considered. How does Convolutional/Viterbi compare to RS? Are you doing this with a PIC? I've seen some FEC engines out there (just poking around on the web) for both RS and Viterbi. My requirements for data throughput and length are quite small (throughput between 5-10Kbps, packet length between 15-150 bytes) but transmission is one-way over an RF link and would like to try to avoid sending duplicate packets. Want to use a PIC for both encoding and decoding. Regards, -Randie rohtsji@glenayre.com > From Tom_Mariner@EMAIL.MSN.COM Thu Mar 19 16:00:10 1998 > MIME-Version: 1.0 > Content-Transfer-Encoding: 7bit > Date: Thu, 19 Mar 1998 08:58:53 -0500 > From: Tom Mariner > Subject: Re: Reed-Solomon Error Correction with PIC - Oops > To: PICLIST@MITVMA.MIT.EDU > > Hello Randie, > > My previous message that contained no reply was going to ask why you didn't > consider another flavor of FEC, but then my eye caught your firm name and > it became clear that you had no choice -- your data is coming to you in > Reed-Solomon. We are in the process of using Convolutional / Viterbi which > in many of its incarnations gives good results too. > > Tom > > On Wednesday, March 18, 1998 5:47 PM, Tom Mariner > [SMTP:Tom_Mariner@EMAIL.MSN.COM] wrote: > > On Wednesday, March 18, 1998 4:19 PM, Randie Ohtsji [4555] > > [SMTP:rohtsji@GLENVAN.GLENAYRE.COM] wrote: > > > BTW, I was hoping to use one PIC to do the encoding on one end > > > and have another PIC to do the decoding on the other end. > > > > > > -Randie > > > rohtsji@glenayre.com > > > > > > > > > > > > > > Hello, > > > > > > > > Has anyone implemented Reed-Solomon Error Correction Coding with > > > > a PIC? Just wondering if it's possible (does the PIC have enough > > > > processing power?) and any pointers or hints on how to do it with a > PIC. > > > > > > > > Thanks in advance, > > > > > > > > -Randie > > > > rohtsji@glenayre.com > > > > > > > >