[ahmetemir]

Hello,

I’m new on 5G Link Level Simulator. On main.m at Line 14 I selected simulationScenario = ‘NOMA’. But program gave error as:

Error using ChannelEstimation.PilotSymbolAidedChannelEstimation (line 99)
Too many input arguments.

Error in Elements.Link/updateLink (line 114)
                    ChannelEstimator = ChannelEstimation.PilotSymbolAidedChannelEstimation( ...

Error in main (line 44)
parfor iSweep = 1:length(simParams.simulation.sweepValue) % this may be 'for' or 'parfor'

Caused by:
    Error using repmat
    Too many input arguments.

I have MATLAB R2013a. How could I overcome of this problem?

Would you give me avices please?

Best Regards…

• This topic was modified 3 years, 1 month ago by ahmetemir.
• This topic was modified 3 years, 1 month ago by ahmetemir.

[Stefan Pratschner]

Hi,

sorry for my late response.

Do you have Matlab’s parallel computing toolbox? If this is not the case, please change “parfor” in line 44 of main.m to a simple “for”. Even if you have the toolbox, this is beneficial for debugging.

best
Stefan

[ahmetemir]

I remove MATLAB 2013a then I set up newer version of MATLAB, it works thanks for your advices. Thanks for your advices

[Roaa Ali]

Hello,

I’m new on 5G Link Level Simulator I have version 1.2 and MATLAB R2018b. On main.m at Line 14 I selected simulationScenario = ‘NOMA’.when change codebook from LTE TO 5G
scStr.simulation.codebook = ‘5G’;
But program gave error as:

Error using Parameters.SimulationParameters/initializeLinks (line 1672)
The configuration for the number of horizontal and vertical antennas does not fit the total number of antennas.

Error in main (line 60)
Links = simParams.initializeLinks(Links, BS, UE); %#ok
Would you give me advices please?

Best regards
Roaa

[Mariam Mussbah]

Dear Roaa,

The error message you got indicates that the total number of antennas simulation.nAntennasBaseStation and the antenna configuration simulation.antennaConfiguration do not fit. For the 5G codebook, the total number of antenna has to be equal to 2*N_1*N_2.

Best,
Mariam

[Farhan]

Dear Mariam,

In MassiveMiMO, For 5G codebook, can you please share sample parameters?

scStr.simulation.codebook = ‘5G’;
scStr.simulation.nAntennasBaseStation = ?
scStr.simulation.antennaConfiguration = ?
scStr.simulation.nAntennasUser = ?

[Mariam Mussbah]

Dear Farhan,

The precoding for multi-user MIMO is not codebook-based. The codebook is only used when you simulate single-user MIMO with PMI feedback activated.

Best,
Mariam

[Farhan]

Thanks Mariam,

What about layerMapping.mode? if we set it to 5G instead of LTE while keeping scStr.simulation.codebook = ‘LTE’; for massiveMIMO scenario? What impact will it have?

Regards,
Farhan

[Author]

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