Question

Consider five wireless stations, A, B, C, D, and E.

Station A can communicate with all other stations.
Station B can communicate with A, C and E.
Station C can communicate with A, B and D.
Station D can communicate with A, C and E.
Station E can communicate A, D and B.

Answer the questions based on the previous information:

When Station C is sending to Station D, what other communications are possible? Explain your answer.

When Station B is sending to Station A, what other communications are possible? Explain your answer.

When Station B is sending to Station C, what other communications are possible? Explain your answer.

Answer 1

Check the explanation

Step-by-step explanation:

A) Whenever C is sending to D, what other communications are possible?

C’s packet will be seen by A, B and D, but not by E. Thus, D can send to E at the sametime..

B) Whenever B is sending to A, what other communications are likely?

Even though B’s packet will not be seen by D, other nodes, e.g., E, or C, can’t send to D since the packets from these nodes will interfere with the packets from B at A. Therefore, other communications is not likely at the same time.

C) Whenever B is sending to C, what other communications are possible?

B’s packet will be seen by E, A and C, by not by D. therefore, E can send to D at the same point.