Consider the scenario below where A and C are both within range of B but not in range of each other and

RTS$/$CTS is utilized in the IEEE $802\mathrm{.}11$ MAC.

$($a$)$ If A initiates a data transfer sequence $($RTS$-$CTS$-$Data$-$ACK$)$ to B at the same time as C initiates a

data transfer sequence to B what will happen?

$($b$)$ Consider the case where A initiates a data transfer sequence $($RTS$-$CTS$-$Data$-$ACK$)$ to B and the

CTS from B to A is successfully transmitted without any overlapping transmissions. However C

was just ready to transmit when it detected the CTS from B to A$.$ When is the earliest C can

initiate its own data transfer sequence to B$.($a$)$ If A initiates a data transfer sequence $($RTS$-$CTS$-$Data$-$ACK$)$ to $B$ at the same time as $C$ initiates a

data transfer sequence to B what will happen?

$($b$)$ Consider the case where A initiates a data transfer sequence $($RTS$-$CTS$-$Data$-$ACK$)$ to B and the

CTS from B to A is successfully transmitted without any overlapping transmissions. However C

was just ready to transmit when it detected the CTS from B to A$.$ When is the earliest C can

initiate its own data transfer sequence to B$.$