I have used a Loop as-- bitsIn = randi([0 1], bitsPerSubCarrier*numDataCarriers, 1); symbolsIn = qamMapper(bitsIn); why matlb shows an error like-- Error in fofdmn1 (line 60) symbolsIn = qamMapper(bitsIn);? Please answer me if any alternative.

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MOLLAH KHOKON ALI 2017-10-20

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https://ww2.mathworks.cn/matlabcentral/answers/362343-i-have-used-a-loop-as-bitsin-randi-0-1-bitspersubcarrier-numdatacarriers-1-symbolsin-q

评论： MOLLAH KHOKON ALI 2017-10-20

 bitsIn = randi([0 1], bitsPerSubCarrier*numDataCarriers, 1); 
 symbolsIn = qamMapper(bitsIn);

why matlb shows an error like--

Error in fofdmn1 (line 60) symbolsIn = qamMapper(bitsIn);

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MOLLAH KHOKON ALI 2017-10-20

编辑：Walter Roberson 2017-10-20

在 MATLAB Online 中打开

%QAM symbol mapper
qamMapper = comm.RectangularQAMModulator( ...
    'ModulationOrder', 2^bpsc, 'BitInput', true, ...
    'NormalizationMethod', 'Average power');
%Set up a figure for spectrum plot
hFig = figure('Position', figposition([46 50 30 30]), 'MenuBar', 'none');
axis([-0.5 0.5 -500 -20]);
hold on;
grid on;
xlabel('Normalized Frequecny');
ylabel('PSD(dBW/HZ)');
title(['F-OFDM',num2str(nrbs),'Resource Block',num2str(rbsize),'Subcarrier each']);
%Generate Data Symbol
bitsIn = randi([0 1], bpsc*ndc, 1);
symbolsIn = qamMapper(bitsIn);

Error message like below:

Array formation and parentheses-style indexing with objects of class 'comm.RectangularQAMModulator' is not allowed.
Use objects of class 'comm.RectangularQAMModulator' only as scalars or use a cell array.
Error in fofdm1 (line 75)
symbolsIn = qamMapper(bitsIn);