# the difference two MIMO systems

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#### medototy

##### Newbie level 6
what is the difference between this systems(y=HX+w) and (y=H*P^1/2*X+w) in sense of detection process of MIMO systems? where y is the receive symbols, H is the channel matrix, X is the transmit symbols, P is the trasmit power for each antenna, w: noise .

#### David83

what is the difference between this systems(y=HX+w) and (y=H*P^1/2*X+w) in sense of detection process of MIMO systems? where y is the receive symbols, H is the channel matrix, X is the transmit symbols, P is the trasmit power for each antenna, w: noise .

P is diagonal?

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