LDPC Codes

LODE - LDPC And RA Online Density Evolution

Find the threshold, bit error rate plot, or EXIT chart for your degree distribution.

Please see An introduction to density evolution with LODE and LOPT for more information on how to use LODE. To find a degree distribution with optimal threshold use LOPT Online Degree Optimisation

 

Code Type

LDPC Repeat-Accumulate

Degree Distribution

    

Tuning Parameters
λ degrees

?

   Min/Max LLR

?

  
λ(x):

?

   Number of LLR points

?
ρ degrees

?

   Number of iterations

?
ρ(x):

?

   Minimum BER

?

Options

      

Outputs
Threshold Search Minimum (dB) Maximum (dB) Minimum difference
 

?

 Eb/No,σ
       
 
Specify Eb/No Eb/No Min (dB) Eb/No Max (dB) Number BER vs iteration
 

?

 EXIT charts
       
 




Click on the question mark (?) for more information about each field.

Maintained by David Hayes
University of Newcastle
2 Dec 2009, © Copyright