As described in Section #modelnoise#258>, the three sources of noise
for an intrabody signalling system are external interference, thermal
system noise, and amplification noise. The first of these is highly
dependent on the particular environment in which it is used. Used on
a body with multiple transmitters, the external interference would be
drastically higher than an isolated receiver far from other radiative
systems. The thermal and amplification noise are easier to quantitatively
characterize.