Consider two nodes, A and B, that use the slotted ALOHA protocol to contend for
ID: 3620195 • Letter: C
Question
Consider two nodes, A and B, that use the slotted ALOHA protocol to contend for a channel. Suppose node A has more data to transmit than node B, and node A's retransmission probability is ?A is greater than node B's retransmission probability, ?B. a) Provide a formula for node A's average throughput. What is the total efficiency of the protocol with these two nodes?b) If ?A=2?B, is node A's average throughput twice as large as that of node B? Why or why not? If not, how can you choose ?A and pß to make that happen? c) In general, suppose there are N nodes, among which node A has retransmission probability 2? and all other nodes have retransmission probability ?. Provide expressions to compute the average throughputs of node A and of any other node. Consider two nodes, A and B, that use the slotted ALOHA protocol to contend for a channel. Suppose node A has more data to transmit than node B, and node A's retransmission probability is ?A is greater than node B's retransmission probability, ?B. a) Provide a formula for node A's average throughput. What is the total efficiency of the protocol with these two nodes?
b) If ?A=2?B, is node A's average throughput twice as large as that of node B? Why or why not? If not, how can you choose ?A and pß to make that happen? c) In general, suppose there are N nodes, among which node A has retransmission probability 2? and all other nodes have retransmission probability ?. Provide expressions to compute the average throughputs of node A and of any other node.
Explanation / Answer
1.Given that A and B are the two nodes.Node A has more data to transmit than nodeB.
Retransmission of node A