matlab code for qpsk digital modulation in mimo

i want matlab code for QPSK digital modulation technique using MIMO.Mainly it should not be in analog form.Please answer this question with well explaination

[Walter Roberson]

This is not a resource to answer homework questions.

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

If you have specific problems such as trying to understand an error message, then people will try to help with that.

https://www.mathworks.com/help/comm/ref/comm.qpskmodulator-system-object.html

Answer 1

[SaiDileep Kola]

I understand your question as, you need to develop MIMO system using QPSK as the modulation type, which doesn’t deviate from the traditional QPSK modulation and you can use matrices in which each symbol is QPSK modulated and the dimensions to match your use case of n*n MIMO system.