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am quite unsure with the following question. would appreciate your help with it:

in a 3 stationed p-csma network, where \$p=0.3\$, we know that in \$t_0\$ the network is restarted, the channel is quiet(idle) and in the 3 stations there is a frame ready to be broadcasted.

a)is it possible to calculate the probability of a successful broadcast in time \$t_0\$?

b)will the previous answer would've changed if the protocol was 0-CSMA(non presistent CSMA)?

my attempt:

a)shouldn't it be \$P_A = (1-\frac{1}{N})^{N-1}\$ and in our case \$= \left(\frac{2}{3}\right)^2\$? and since the result is less than one, so the stations can transmit?

b)now it just waiting a random amount of time and then retrying. i don't know how to calculate that

i feel that i am doing a mistake in both. would very much appreciate a correction and the right way to do so to learn.

thank you very much for helping me. tried to explain and elaborate as much as i can

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  • \$\begingroup\$ Inline equations on this website is \$EQUATION\$, you need a backslash ( \ ). Our website is different than other SE's on here. \$\endgroup\$ – KingDuken Apr 16 at 21:20
  • \$\begingroup\$ thank you for explaining that to me. next time i will use that to appropriately write equations. thought it's a bug in my browser that it doesn't show math. could you please help me with the question though? \$\endgroup\$ – hps13 Apr 18 at 6:33

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