Is it possible to use the 'time' or 'Index' reserved variables in a simulation to change a component parameter during the same simulation? Specifically, I'm using the WLAN_ChannelModel to create some multi-frame faded waveforms, and I'd like to change the value of the 'seed' parameter in WLAN_ChannelModel between frames to re-randomize the tap weights for each frame in the simulation. I think I can do it if I can use 'time' or 'Index', but if these are inaccessible, might there be another way to do this?
The only exception is the Expression parameter of the TimedExpression and NumericExpression components. These parameters can be set to a string that defines a function of time or Nsample respectively. The expression will be evaluated at every simulation point.
So to answer your question, it is not possible to do what you are asking. Even if you do set the Seed parameter to an expression of time or Nsample it will be evaluated only at the beginning where time and Nsample have the value of 0.