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Suppose you have a 4 nodes A,B,C and D, contending for a channel using slotted ALOHA. Each node transmits with probability 40% and has an

Suppose you have a 4 nodes A,B,C and D, contending for a channel using slotted ALOHA. Each node transmits with probability 40% and has an infinite number of packets to transmit. The slots are numbered starting at 1. All Answers should have 2 digits of precision. A. The probability node A's first successful transmission occurs in slot 1 is (probability is a number between 0 and 1): _____________ B. The probability that both node A is successful in slot 1 and B is successful in slot 2 is: _____________ C. The probability of no packet going through in slot 2, either because of no transmission or a collision is: _____________ D. The long run efficiency (as the number of packets goes to infinity) of the channel is: (a number between 0 and 100): _____________

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