MIMO Not interference ?

[esreeha]

Dear friends

One Query , can be foolish , but to understand the basics

while using MIMO why multiple antenna transmitting in same frequency(is it correct ?) is not becoming interference .

Thanks in Advance

[dimooon11]

In a nutshell: signals should be not correlated when arrived at receiver.

1) due to multipath propagation
2) if not then to the same signal applied some shift (simplified)

Hope this helps.

[Nyquist]

Hi esreeha.
You know that MIMO 2x2 means that there are 2 streams, with different information. In order to not interfering one stream to other, these streams have to be orthogonals.

Regards
Nyquist