LDPC Bit Flip Decoder Definition: Difference between revisions

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== Example Flowgraph ==
== Example Flowgraph ==


Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
This flowgraph can be found at [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/examples/fecapi_ldpc_decoders.grc]
 
[[File:Fecapi_ldpc_decoders_fg.png|800px]]


== Source Files ==
== Source Files ==

Latest revision as of 13:35, 21 December 2021

This block creates a LDPC Bit Flip Decoder Definition variable.

The decoder requires knowledge of the matrix used to create (encode) the codewords.

Parameters

Parallelism
For parallel execution of multiple instances of the block (more info is needed on this)
Dimension 1
For parallelism
Dimension 2
For parallelism
Max iterations
Max iterations may be increased from 100 for possibly better performance, but significantly higher number of iterations may slow things down.
LDPC FEC matrix ID
In the LDPC FEC Matrix ID field, input the ID of either a:
1) LDPC Generator Matrix variable, or
2) LDPC Parity Check Matrix variable

Example Flowgraph

This flowgraph can be found at [1]

Fecapi ldpc decoders fg.png

Source Files

C++ files
[2]
Header files
[3]
Public header files
[4]
Block definition
[5]