Two stations A, B employing Ethernet standard are competing for access. Suppose, both stations have many frames to send (labelled A1, A2, ... for A and B1, B2, .... for B). Suppose A and B simultaneously transmit their respective first frames and collide. After their first collision, A chooses k=0, while B chooses k=1. This ensures that transmission of A1 is successful while B1 is yet to meet with success. At the end of A1's transmission, A attempts to send A2 and B attempts to send B1. What is the probability that A2's transmission succeeds over B1's? Suppose A2's transmission succeeds again compared to B1's. Now A is attempting A3, while B is still attempting B1. What is the probability that A3's transmission succeeds over B1's?
