4. Please show all work! Switched virtual circuit transmission overhead could be high to send a small amount of information. Assume the distance as 4,500 km, the propagation speed as 200 meters per microsecond and OC3 payload of 150.336 Mbps with 5.184 Mbps overhead. Calculate the minimum time to transmit one ATM cell from Miami to San Francisco on a basic SONET network OC-3 for the following cases: (a) Datagram service (b) Switched virtual circuit service (c) Permanent virtual circuit service

4. Please show all work! Switched virtual circuit transmission overhead could be high to send a small amount of information. Assume the distance as 4,500 km, the propagation speed as 200 meters per microsecond and OC3 payload of 150.336 Mbps with 5.184 Mbps overhead. Calculate the minimum time to transmit one ATM cell from Miami to San Francisco on a basic SONET network OC-3 for the following cases: (a) Datagram service (b) Switched virtual circuit service (c) Permanent virtual circuit service

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

See similar textbooks

Similar questions

Problem 1: An OC-192 network line has a bandwidth of up to 9.510912 Gbit/s. Ignoring delays through OLAs and routers, calculate the maximum number of bytes that can be in transit on a link from Milwaukee to New Orleans. (Show your assumptions. Look up the transmission delay in optical fiber.)
A simple point-to-point microwave transmission link has no redundancy. Failure of the link will result in an outage. Therefore, typical microwave transmission links are designed with redundancy. Explain the following redundancy techniques 1+1 Hot Standby (HSB), 1+1 Space Diversity (SD), and 1+1 FD.explain.
In the communication in the figureFor Link 1; Bandwidth 150 Mbps Line Length 5 km For Link 2; Bandwidth 50 Mbps Line Length 2000 km For Link 3; Bandwidth 1000 Mbps Line Length 1 km For 4000 bit packet length and the case where fiber optic and light speed of all connections are 3x10^8 m / sec; Question 1. What is the transmission and propagation delays for each line?Question 2. Assuming there are no queue and processing delays, calculate the end-to-end delay in milliseconds.
A 16 x 16 Router, where each input runs at 7 Gbps. Assume, the average RTT= 120 msec. What is the rule of thumb for the minimum router buffer size in Mbytes?
Unless specified otherwise, use the free space propagation speed of light 3x108 m/s to calculate the propagation delay. For numerical calculations, the results must show the appropriate unit. Show a complete solution for each problem2. Suppose network users share a 4 Mbps link. Also, suppose each user requires 200 kbps when transmitting, but each user transmits only 15% of time.a. When circuit switching is used, how many users can be supported?b. Suppose packet switching is now used and that there are 20 users. Find the probability that any given time, at most 4 users are transmitting simultaneously.
Assume a 10Mbps Ethernet has two nodes, A and B, connected by a 360m cable with threerepeaters in between, and they each have one frame of 1,024 bits to send to each other. Further assumethat the signal propagation speed across the cable is 2*10^8 m/sec, CSMA/CD uses back-off intervals ofmultiples of 512 bits, and each repeater will insert a store-and-forward delay equivalent to 20-bittransmission time. At time t=0, both A and B attempt to transmit. After the first collision, A draws K = 0and B draws K = 1 in the exponential back-off protocol after sending the 48bits jam signal. a. What is the one-way propagation delay (including all repeater delays) between A and B inseconds? At what time is A's packet completely delivered at B? b. Now suppose that only A has a packet to send and that the repeaters are replaced with switches.Suppose that each switch has an 8-bit processing delay in addition to a store-and-forward delay.At what time, in seconds, is A's packet delivered at B?
5. Consider the CDMA technique and assume that users A and B have spreading codes 01010101 and 01011010, respectively. Denote bit 0 as -1 and bit 1 as +1. (a) How can one determine if these two spreading codes are orthogonal? (b) What is the compound signal content if A sends a data bit 0 and B sends a data bit 1? (c) What data bit is transmitted by users A and B, respectively, if the compound signal content is (0, 0, 0, 0, -2, 2, -2, 2)? (d) How can a user know that the received signal content does not contain relevant data bits to
A 8 X 8 Router, where each input runs at 5 Gbps. Assume, the average RTT = 160 msec. What is the rule of thumb for the minimum router buffer size in Mbytes? What is the latest recommendation for the minimum router buffer size in Mbytes if you have 225 flows?
Unless specified otherwise, use the free space propagation speed of light 3x108 m/s to calculate the propagation delay. For numerical calculations, the results must show the appropriate unit. Show a complete solution for each problem1. Consider a client-server system with the following parameters and requirements. The client transmits 10x10^6 bits of data every minute to the data server connected directly to it. The transmission link speed is 20x10^6 bps. Each packet is 2,000 bytes long which includes a 20-byte packet header.a. Calculate the number of packets generated per second for data transmission at the client node.b. The system requires every packet must be delivered within 4 ms of generating a data packet. Calculate the maximum link distance between the client and the server that still can meet this requirement. Ignore processing and queuing delays.c. Calculate the number of overhead bits transmitted per second from the client to the server.
Assume that in a gNB there will be 100 subscribers at 5Mbps 200 subscribers at 1Mbps 300 subscribers at 512 kbps and 400 subscribers at 256 Kbps Given 10MHz for a 5G cell. Assume d4=R the radius of the cell, d4- d3= d3-d2= d2-d1 and d1 =0.4R. Removing the Reference Signals (RS) in each of the PRB and then consider 30% of the total available Resource Elements (RE) will be used for control purposes (therefore not considering the removal of the 3 OFDM symbol anymore), Calculate the aggregated downlink throughput of this cell, Calculate the radius of this cell with user density 1000/km2 and the given average user data rate 1056kbps. Assuming a circular cell with an area of pR2. If twice as many handsets are distributed in this cell area, would the average rate be reduced to half or even lower? Why?
Computer Science Two flows are transmitting at a constant rate of 4Mbps and 8Mbps and compete for service at a 10Mbps link. If the link adopts an RED policy, what is the expected drop probability for each flow?
A 8 X 8 Router, where each input runs at 6 Gbps. Assume, the average RTT = 150 msec. What is the latest recommendation for the minimum router buffer size in Mbytes if you have 64 flows?