Consider seven wireless stations, A, B, C, D, E, F, and G. A can communicate wit

Question

Consider seven wireless stations, A, B, C, D, E, F, and G. A can communicate with all stations except F. B can communicate with A, D, E, and F. C can communicate with B and G. D can communicate with A, E, and F. E can communicate A, B, D, and G. F can communicate with B and E. G can communicate with C and E. (a) When A is sending to C, what other communications are possible? (b) When B is sending to D, what other communications are possible? (c) When C is sending to B, what other communications are possible? (d) When D is sending to F, what other communications are possible? (e) When E is sending to G, what other communications are possible?

Explanation / Answer

(a) When A is sending to C, what other communications are possible?
A->B , A->C, A->F, C->D, F->E

(b) When B is sending to D, what other communications are possible?
B->A , B->D, B->F, D->E

(c) When C is sending to B, what other communications are possible?
C->B, B->E, E->G

(d) When D is sending to F, what other communications are possible?
D->A, A->C, E and F can transmit on listen to D->A

(e) When E is sending to G, what other communications are possible?
E->A, E->B, E->D, B->C,

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