Consider the following WiFi topology, with five transmitters $($A$,$ B$,$ D$,$ E$,$ and F$)$ and two access

points $($C and G$).$ As shown, A and B are associating with $C,$ while $D,E,$ and $F$ are associating

with $G.$

$2$ BSSes with $7$ stations

Q$3\mathrm{.}1(20$ points$)$ Suppose the two access points are each using non$-$overlapping channels.

Each station is using the ALOHA protocol, with a $40\%$ probability of transmitting in each

timeslot. What throughput does Station A achieve $($in percent$)?$

Q$3\mathrm{.}2(20$ points$)$ Now assume the two access points are using overlapping channels. Each

station is using the ALOHA protocol, with a $40\%$ probability of transmitting in each timeslot.

What throughput does Station A achieve $($in percent$)$ now?