MATLAB: Function of random interleaver

random interleaver

Is there a script function of "random interleaver" block in simulink?

Best Answer

Hi MH,

Here is the list of interleaving and deinterleaving functions that are available.

Specifically the function of random interleaver is randintrlv.

Hope this helps.

Regards,

Sriram

Related Solutions

MATLAB: Question about matrix interleavers?

you can use reshape function. give an example of matrices you want to interleave

MATLAB: Estimate BER for LDPC 1/2 code

Hi Pertesis,

The issue you observe is due to the usage of comm.BPSKDemodulator with hard decision (which is the default) in conjunction with the LDPC decoder. Note that LDPC decoder expects the input to be the LLR's, but due to the hard decision from the BPSK demodulation, the output is bits from it. This is provided to LDPC decoder and it just wasn't able to decode any of it properly. I suggest you to make the following update to the BPSK demodulator and place the EbNoVec range from -11:0.1:2 to see the free falling curve.

bpskDEModulator = comm.BPSKDemodulator('DecisionMethod',"Log-likelihood ratio");

More details of the usage of LDPC decoder and BPSK demod can be accessed with the links.