Simulation and measurement the Noise Figure of a fully Differential MOS amplifier

[a.g.electronic96]

Hello everybody
Actually, I have designed a fully differential amplifier like the attached picture. Actually I have simulated all parameter in DC and AC, the only parameter which I could not simulate and also it is the most important one, would be Noise figure. the main problem is that how to connect the noise source at two inputs( + and _) and also how exactly do I have to connect the output probes to get the result of Noise figure. (for differential output)
Please help me as soon as you can.:sad:

 

[a.g.electronic96]

Hi again every body, Actually, I have simulated my FDA using LT spice. My question is that the configuration for input noise source and differential output is right or not ? I have attached the circuit for input and output as below.
I am still waiting to hear from you guys.

 

[a.g.electronic96]

there is nobody to answer me.... please help me...