Question

Consider four wireless stations, A, B, C, D. Station A can communicate with all other stations. B can communicate with A, C. C can communicate with A, B, D. D can communicate with A and C. (a)When B is sending to A, what other communications are possible? (b)When A is sending to C, what other communications are possible? Explain your responses.

Answer #1

Answer of the question

Question A

When B is sending to A, what other communications are possible?

The answer is

In that case B packet will not seen by D.other nodes cannot send to D because the packet from this nodes will interface the packet from B to A.other communication is not possible at the same time.

Question B

When A is sending to C, what other communications are possible

Answer is

when A sending to c in that case all station will seen as packet.it will interface with the receipt of any other packet by any other station.so no other communication is possible in that time.

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