MATLAB: Doesn’t the DMODCE function take in a matrix input when using it for MSK Modulation in the Communications Toolbox 2.0 (R12.1)

Communications ToolboxdmodcematrixModulationmskvertcat

When I run the following code:
M = 2;   % states in the modulation
Fd = 1E3;  % data rate
Fs = 10E3; % set the sample frequency
Nd = 12;  % set the number of data points
MsgData = randint(Nd,3,M); 
Envelope = dmodce(MsgData,Fd,Fs,'msk');
I get the following error:
 ??? Error using ==> vertcat
 All rows in the bracketed expression must have the same 
 number of columns.
 Error in ==> D:\R12.1\toolbox\comm\comm\dmodce.m
 On line 198  ==>         x = [0; x(1:end-1)];

Best Answer

This bug has been fixed in the Communications Toolbox 2.1 (R13). If you are using a previous version, read the following:
This is a bug in the Communications Toolbox 2.0 (R12.1) when using the DMODCE function with matrix inputs for MSK modulation.
There are no workarounds.
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