MIMO literature

Hello all,

Firstly, thank you to anybody kind enough to help me in a reply. I'm a university physics student on placement and I need to learn as much as I can about MIMO (and wifi in general). If anybody could point me in the right direction of some good literature on the subject (my google searches haven't produced anything too useful) I'd be very grateful.

I also need to find out the kind of transmission and recieve powers that are involved with MIMO wifi?

Thank you!

Tom