In 1/3 FEC and 2/3 FEC encoder what does 1/3 and 2/3 indicate ?

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In 1/3 FEC and 2/3 FEC encoder what does 1/3 and 2/3 indicate ?

FEC - FORWARD ERROR CHECK

fec is used in applications like bluetooth.

2007-03-09 14:43:27 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Engineering

2 answers

FEC = Forward Error Correction, Extra bits are added to a data stream to allow a small number of errors to be automatically corrected at the receiver.

1/3 , means for every 1 bit of information 3 bits of data are sent - very inefficient, but more errors can be corrected

2/3 means for every 2 bits of information 3 bits of data are sent - more efficient but only a few errors can be corrected.

2007-03-09 17:13:12 · answer #1 · answered by rscanner 6 · 1⤊ 0⤋

Hi. This site explains the difference. http://www.geocities.com/SiliconValley/Pines/6639/ip/bt/baseband.html

2007-03-09 22:46:59 · answer #2 · answered by Cirric 7 · 0⤊ 1⤋