Stop-and-Wait Flow Control & Asynchronous Transmission: A

node wants to communicate with another node that is 3000 meters away. The

transmitted signal propagates at a speed of 3x108 m/s. The node sends frames

of length 1500 bytes at a data rate of 1 Gbps. The node employs Stop-and-Wait

flow control.

1. What is the utilization of the system?

2. What is the maximum distance a receiver node can be at such that the

utilization is at least 0.75?

3. A receivers clock drifts at a rate of 0.5 seconds

every day. The receiver can synchronize itself with the transmitter at the

beginning of each frame but not during the frame. It samples the middle of a bit

to decode whether its a 0 or 1. Will the system described above work well with

such a receiver? What is the maximum frame size that will work fine