V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

FEC
       Forward Error Correction (GSM, mobile-systems)


The Free On-line Dictionary of Computing (30 December 2018):

Forward Error Correction
FEC

    (FEC) A class of methods for controling errors in
   a one-way communication system.  FEC sends extra information
   along with the data, which can be used by the receiver to
   check and correct the data.

   A CPU writing data to RAM is a kind of one-way
   communication - see error correcting memory and error
   checking and correction.

   (1996-10-02)