a) If one wants to send a packet of 120 bits to the other, what is the distance m so that the propagation time equals the transmission time? bi Supp

Operations Research : Applications and Algorithms
4th Edition
ISBN:9780534380588
Author:Wayne L. Winston
Publisher:Wayne L. Winston
Chapter20: Queuing Theory
Section20.10: Exponential Queues In Series And Open Queuing Networks
Problem 8P
Question

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Two endpoints are connected by a single link of rate R = 56kbps and the propagation speed along the link is 2* 10^8.
a) If one wants to send a packet of 120 bits to the other, what is the distance m so that the propagation time equals the
transmission time?
b) Suppose the server begins to transmit the packet at time te0. when t= transmission delay, where is the last bit of the packet?
c) If the propagation time were greater than the transmission delay, where is the first bit of the packet when time is equal to the
transmission delay?
d) If the propagation time were less than the transmission delay, where is the first bit of the packet when time is equal to the
transmission delay?
Transcribed Image Text:Two endpoints are connected by a single link of rate R = 56kbps and the propagation speed along the link is 2* 10^8. a) If one wants to send a packet of 120 bits to the other, what is the distance m so that the propagation time equals the transmission time? b) Suppose the server begins to transmit the packet at time te0. when t= transmission delay, where is the last bit of the packet? c) If the propagation time were greater than the transmission delay, where is the first bit of the packet when time is equal to the transmission delay? d) If the propagation time were less than the transmission delay, where is the first bit of the packet when time is equal to the transmission delay?
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