LDPC Decoder Definition

This is a soft-decision decoder that uses belief propagation (also known as message passing) that is described at:

[1]

Designed for a memoryless AWGN channel, it assumes a noise variance of the value specified for sigma.

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

AList file

Name of an alist file to use.

Sigma

Noise variance of the channel

Max iterations

Maximum number of iteration for the message passing algorithm

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.

Source Files

C++ files

[2]

Public header files

[3]

Block definition

[4]