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Forward error correction (FEC)
jahanvi

Posts: 42

Joined: 21 Oct 2010 15:44

27 Aug 2012 11:04

Forward error correction (FEC)

Forward error correction (FEC)

    Forward error correction (FEC) is a method of obtaining error control in data transmission in which the source (transmitter) sends redundant data and the destination (receiver) recognizes only the portion of the data that contains no apparent errors. Because FEC does not require handshaking between the source and the destination, it can be used for broadcasting of data to many destinations simultaneously from a single source.

  • In the simplest form of FEC, each character is sent twice. The receiver checks both instances of each character for support to the protocol being used. If conformity occurs in both instances, the character is accepted. If conformity occurs in one instance and not in the other, the character that conforms to protocol is accepted. If conformity does not occur in either instance, the character is rejected and a blank space or an underscore (_) is displayed in its place.


Forward error correction (FEC) feature in Matrix devices

    It is provided in all the ATA series of Matrix say ATA211, ATA2S, ATA1S & ATA211G & also in all gateway series say Setu VGFX, Setu VFXTH etc

  • It is a developed system for error control applied in data transmission. It is often applied in a kind of system that is difficult and costly to build a reverse channel for the receiver to detect and correct data error.

  • It is a well-known technique for improving the reliability of packet transmission over networks that do not provide guaranteed packet delivery, especially in multicast and broadcast applications.