Is MIMO the wireless version of link aggregation in wired networks?
I'm not asking if MIMO is a similar link aggregation protocol like LACP or PAgP. What I'm asking is, if it is the same concept as bonding multiple links to act as one channel.
Let's say for example, we have a pair of 2 x 2 MIMO transmitter and receiver. If the transmitter is to send two packets to the receiver, does it mean packet 1 will be sent through antenna 1 and packet 2 will be sent through antenna 2 simultaneously, and the receiver will receive packet 1 through antenna 1 and packet 2 through antenna 2 simultaneously?
If yes, how do the two signals not interfere with each other? Is it because they are orthogonal signals? Also, is OFDM always required in MIMO because it is the only way to generate orthogonal signals?
If no, then how does MIMO increase capacity? What is the main point if MIMO?