====== Meeting MU-MIMO .16m ======
Stephanie, Marc, Sheng, Laurent

==== Question ====
* what do we want to promote during SIMS group meeting in March?

==== 2TX --> 2 x 1RX ====
* 2 Alamuti
* 2 CDD
* Flip disclosure seems ok whatever the channel is scalar

==== 2TX --> 2 x 2RX(2s): ====
2 Gold codes
====   ====
$$
	Y = H (\sqrt{\alpha} X1 + \sqrt{1-\alpha} X2) + 2
	X1(a,b,c,d) = [a+b\theta C+d\theta; \gamma(c+d\conj{\theta}) a+b\conj{\theta}]
	X2(a',b',c',d')
$$

==== 2TX -->  2RX(2s) + 2RX(1s) ====
* 1 GC 2s + 1 GC 1s (a'=b', c'=d')
	* flexible
* 1 GC 2s + 1 Alamuti
* 1 SDM 2s + 1 Alamuti
* 

Performance?

==== 4TX --> 2 x 2RX(2s) ====
* 4x2 perfect code...

==== Performance assessments ====
* compared to mono user performance
* 3D graph (near user from 0 to max range, far user  from NU to max range), look like a cone