Abstract:
    We derive capacity formulas and strategies for transmission
    over power constrained additive noise channels with interference known
    at the transmitter. Specifically, if the channel noise (not
    including the interference) is weak (i.e., high SNR conditions),
    then for causally knwon interference the capacity loss is equal to the 
    ``shaping gain'' (0.254 bit), whereas for non-causally known
    interference no capacity loss is incurred.