Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, and suppose the propagation speed along the link is s meters/sec. Host A is to send a packet of size L bits to host B. a. Suppose host A begins to transmit the packet at time t= 0, at time t=dtrans, where is the last bit of the packet? b. Suppose dprop is greater than dtrans. At time t =dtrans, where is the first bit of the packet?

Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters, and suppose the propagation speed along the link is s meters/sec. Host A is to send a packet of size L bits to host B. a. Suppose host A begins to transmit the packet at time t= 0, at time t=dtrans, where is the last bit of the packet? b. Suppose dprop is greater than dtrans. At time t =dtrans, where is the first bit of the packet?

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

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Network transmission cabling

A network is a collection of devices connected by communication links. A device can be a computer or any instrument capable of sending and receiving data or information formed by other nodes toward the network. A channel that connects people or things is known as a network. It sends the data from one place to another. It is the basic concept of a computer, network, and data communications.

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a. Suppose host A begins to transmit the packet at time t= 0, at time t=dtrans, where is the last bit of the packet?
b. Suppose dprop is greater than dtrans. At time t =dtrans, where is the first bit of the packet?

c. Suppose dprop is less than dtrans. At time t =dtrans, where is the first bit of the packet?
d. Suppose s = 2.5 x 108 , L=100 bits, and R=28 Kbps. Find the distance m so that dprop = dtrans.

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