802.11g Forward Error Correction - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues - primarily having to spend time purging garbage posts from the board. At some point I might start the RF Cafe Forums again if the phpBB software gets better at filtering spam.

Below are the old forum threads, including responses to the original posts.

-- Amateur Radio
-- Anecdotes, Gripes & Humor
-- Antennas
-- CAE, CAD, & Software
-- Circuits & Components
-- Employment & Interviews

-- Miscellany
-- Swap Shop
-- Systems
-- Test & Measurement
-- Webmaster

wahooburger

Post subject: 802.11g Forward Error Correction

Posted: Thu Feb 16, 2006 2:30 pm

Captain

Joined: Thu Jun 23, 2005 10:47 am
Posts: 6

Hello all,

Does anyone know what type of forward error correction coding is used in 802.11g?

At 54 Mbps, the 802.11g standards documents states a 3/4 coding rate.

Where can I get more information on the coding using for 802.11g? Is it implementation (chipset) specific?

Thanks for any information!

Regards,
Andrew

mguo

Post subject:

Posted: Tue Feb 21, 2006 2:04 pm

Lieutenant

Joined: Tue Feb 21, 2006 2:00 pm
Posts: 2

It's a normal convoluational code at 1/2 rate. other rates are achieved by puncturing data. You can check the 802.11 standards or any digital communication text books for details. The encoder is standard and the decoder is implementation specific.

Posted 11/12/2012

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website: AirplanesAndRockets.com

My Daughter's Website: EquineKingdom

Innovative Power Products (IPP) RF Resistors & Terminations - RF Cafe

Johanson Dielectrics EMI Filters - RF Cafe