Question: For a given network, the average packet length L 1024 bytes, packets are arriving with an average rate A 8 pakets/s, the network is

For a given network, the average packet length L 1024 bytes, packets

For a given network, the average packet length L 1024 bytes, packets are arriving with an average rate A 8 pakets/s, the network is used to support voice call services which can tolerate a maximum end-to-end delay of 150 ms, the average end-to-end distance between any two connected nodes in the network is 1000 km, the average phase velocity for signal travelling throughout the network links is 0.1 speed of light in free space and the call setup time takes on average 2 s. Assuming the system has no queueing delay and has zero processing delay, answer the following. %3D (1) Find the end-to-end propagation delay in this network. (2) What is the maximum allowable transmission delay to meet the QoS requirements? (3) Calculate the minimum required transmission rate in bits/s. (4) If the connection between the source and the destination is composed of 2 links in series, the first has speed speed 100 kb/s and the second has 150 kb/s, what is the output rate (throughput from the last link?

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