Figure $2-11.$ Convection currents can interfere with laser communication sys$-$

tems. A bidirectional system with two lasers is pictured here. Imagine a network where stations communicate using laser beams, similar to the setup

shown in Fig. $2-11.$ Explain how this setup is similar to$,$ and different from, both Eth$-$

ernet and $802\mathrm{.}11,$ and how that would affect the design of its data link layer and MAC

protocols.