For a transmission medium, SNRdb is given as 18. The given capacity of 28,26 Mbps is valid for which bandwith and amount of signal level? a. Signal level = 9 Bandwith = 4,72 MHz O b. Signal level = 9 Bandwith = 4,71 MHz Oc. Signal level = 9 Bandwith = 4,77 MHz O d. Signal level = 9 Bandwith = 4,74 MHz O e. Signal level = 16 Bandwith = 4,72 MHz
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- 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.A Telecom operator has been assigned the bandwidth from 2100MHZ to 2105MHz, this can support 100 voice channels and 6 users per channel. Assume there is a guard band (inter channel space) of 10KHz then what will be the size of a single channel? And how many total number of users could be accommodated? Draw figure on your note book.The amateur radio community uses at most 25kHz of bandwidth in the VHF band that spans 144MHz to 146MHz. Two different users simultaneously transmit their voices without interfering with each other by using the 144.025MHz and the 145MHz frequencies, respectively. How many users can simultaneously transmit without interfering with each other over the given VHF band?
- 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.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 problem5. An access multiplexer (AM) installed in the roadside box of the NBN (National Broadband Network). Assume that 200 homes are connected to the AM. The average packet interarrival arrival time at the AM is 200 μs. The average packet length is 2,500 bytes where the packet length is exponentially distributed.a. Calculate the number of packets arriving at the AM every hour.b. Calculate the incoming traffic rate (in bits/sec) at the input of the AM.c. Assume that the output of the AM is connected to the NBN core network via a 2-Gbps link. Calculate the total normalised load ρ at the AM.d. Assume that the packet arrival process is exponentially distributed. Calculate the average queuing delay introduced by the AM.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 2. Assuming there are no queue and processing delays, calculate the end-to-end delay in milliseconds.
- A Telecom operator has been assigned the bandwidth from 2100MHZ to 2105MHz, this can support 100 voice channels and 6 users per channel. Assume there is a guard band of 10KHz then what will be the size of a single channel? And how many total number of users could be accommodated? Draw figureA data channel at 5 Gbps is shared by two users. Assume that each user is transmitting at 2.5Gbps data rate continuously. Each user only transmits only 30% of the time. (a) If circuit switching is used, how many users can be supported? (b) If packet switching is used, would there be queuing delay to accommodate these two users? If a third identical user is added will there be a queuing delay? (c) What is the probability that a user is sending data? (d) Now assume three users under packet switching. Compute the probability that at any given time all three are transmitting at the same time. What is the fraction of time when the queue is growing?How would you write a system of linear equations based on the given scenario and directions? Scenario You are employed as a network engineer and have been asked to analyze a communication network to determine the current data rates and ensure that the links aren’t at risk of “reaching capacity.” In the following figure of the network, the sender is transmitting data at a total rate of 100+50 = 150 megabits per second (Mbps). The data is transmitted from the sender to the receiver over a network of five different routers. These routers are labeled A, B, C, D, and E. The connections and data rates between the routers are labeled as x1,x2, x3, x4, and x5 . Directions For this assignment, you will analyze the communication network and solve for the unknown data rates using a variety of techniques. The system can be modeled mathematically as a system of linear equations by writing an equation for each node/router in the network. Each of these equations can be written by noting that the sum…
- Assume you are working as a Network Engineer for a Telecommunications service provider and your task is to estimate the feasibility of a 20 km link between two buildings with one access point and one client radio. The access point is connected to an antenna with 12 dBi gain, with a transmitting power of 500 mW and a receive sensitivity of -84 dBm. The client is connected to an antenna with 10 dBi gain, with a transmitting power of 16 dBm and a receive sensitivity of -82 dBm. The cables in both systems are short, with a loss of 3 dB at each side at the 900 MHz frequency of operation. What is the link margin? By examining the link margin, comment on the reliability of the link.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.For the microwave link shown below, what is the value of the free-space path loss if the operating frequency is 11.8 GHz? For the above microwave link, find the maximum allowed distance between the transmitter and the receiver to maintain the communication, if the transmitter antenna height is ht=30m and the receiver antenna height is hr=25 m.