Jump to content

Soft-in soft-out decoder

Add links
From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Spinningspark (talk | contribs) at 16:46, 12 May 2020 (Reverted 2 edits by 217.158.0.52 (talk): Unhelpful (TW)). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

A soft-in soft-out (SISO) decoder is a type of soft-decision decoder used with error correcting codes.[1] "Soft-in" refers to the fact that the incoming data may take on values other than 0 or 1, in order to indicate reliability. "Soft-out" refers to the fact that each bit in the decoded output also takes on a value indicating reliability. Typically, the soft output is used as the soft input to an outer decoder in a system using concatenated codes, or to modify the input to a further decoding iteration such as in the decoding of turbo codes.

Examples include the BCJR algorithm and the soft output Viterbi algorithm.

See also

References

  1. ^ Andre Neubauer; Jurgen Freudenberger; Volker Kuhn (22 October 2007). Coding Theory.: Algorithms, Architectures and Applications. John Wiley & Sons. ISBN 978-0-470-51982-0.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Soft-in_soft-out_decoder&oldid=956304911"