MT LDPC Generate Irregular Parity Check Matrix

Generates an irregular parity check matrix that is used by MT LDPC Encoder for LDPC encoding. In this node, the number of ones in each column is kept constant, and the number of ones in each row is random.

1378

Inputs/Outputs

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n

The number of columns in the parity check matrix.

Default value: 12

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m

The number of rows in the irregular parity check matrix.

Default value: 6

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j

The number of ones in the columns of LDPC code. j must be an odd number.

Default value: 3

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error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Default value: No error

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maximum number of iterations

The maximum number of iterations to return a parity check matrix that is not rank deficient.

Default value: 30

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irregular parity check matrix

The irregular parity check matrix generated by this node.

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior