Input bits in NR PDSCH Throughput example

Hi,

I’m working with NR PDSCH Throughput example and I have a problem. I want to compute the Bit Error Rate and the simplest way to do that is by means of input bits and decode bits. Can anyone help me?

Answer 1

[Sriram Tadavarty]

Hi AngeloRob,

Inorder to get the bit error rate, the simplest is to store an array of bit errors, similar to simThroughput value for each SNR. The transmitted bits are present in trBlk (for single codeword), or use the getTransportBlock method of nrDLSCH, and the decoded bits are present in decbits variables. Store number of bits that are different in each SNR and then after each SNR point take the ratio of number of bit errors to that of the total number of bits transmitted.

See the attached script which has the required modifications as stated above. The variable bitErrSNR stores the bit error of each SNR point.

Please find the attachment.

Hope this helps.

Regards,

Sriram

[Anh Le]

Hi Siram,

I am working on Link level simulation and want to produce SINR-BLER. I just want to ask how to modify the NewRadioPDSCHThroughputExample.m for producing transport block error rate?

Thank you so much.

Anh

[Sriram Tadavarty]

Hi Anh,

The NR PDSCH throughput example without any modifications gives the metric transport block error rate itself.

Hope this helps.

Regards,

Sriram

[Anh Le]

Thank you, I can get the Block Error Rate from harqProcesses(harqProcIdx).blkerr

[Sriram Tadavarty]

Yes.

[Anh Le]

I have one more concern: how can we calculate the post-processing (post-equalizer) SINR matrix after a full HARQ process for a new data? Is there any function in MATLAB support that?Then, my next question is: is there a function to calculate the effective SINR given the post-processing SINR data? Thank you very much.