Question 2 An engineer at Telekom Malaysia plans to buy a higher-speed modem for sending data over his analog telephone line from his house in Kuala Lumpur to his friend in Penang. The telephone line has a signal- to-noise ratio,SNR of 25 dB and passes audio frequencies over the range from 300 Hz to 3200 Hz. a) Calculate the maximum data rate that the engineer can send over the telephone line without errors at the receiving end. b) Select two other ranges of frequency at your preferences with higher SNR, and compare your results with (a). (For instance, the SNR can be selected from 26 dB to 50 dB.) c) Repeat (b) with lower SNR (i.e. below 25 dB), and compare your findings. d) Analyse your observation from your answers in (a), (b) and (c)
Question 2 An engineer at Telekom Malaysia plans to buy a higher-speed modem for sending data over his analog telephone line from his house in Kuala Lumpur to his friend in Penang. The telephone line has a signal- to-noise ratio,SNR of 25 dB and passes audio frequencies over the range from 300 Hz to 3200 Hz. a) Calculate the maximum data rate that the engineer can send over the telephone line without errors at the receiving end. b) Select two other ranges of frequency at your preferences with higher SNR, and compare your results with (a). (For instance, the SNR can be selected from 26 dB to 50 dB.) c) Repeat (b) with lower SNR (i.e. below 25 dB), and compare your findings. d) Analyse your observation from your answers in (a), (b) and (c)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
An engineer plans to buy a higher-speed modem for sending data over his analog
telephone line from his house in Kuala Lumpur to his friend in Penang. The telephone line has a signal-
to-noise ratio,SNR of 25 dB and passes audio frequencies over the range from 300 Hz to 3200 Hz.
Transcribed Image Text:Question 2
An engineer at Telekom Malaysia plans to buy a higher-speed modem for sending data over his analog
telephone line from his house in Kuala Lumpur to his friend in Penang. The telephone line has a signal-
to-noise ratio,SNR of 25 dB and passes audio frequencies over the range from 300 Hz to 3200 Hz.
a) Calculate the maximum data rate that the engineer can send over the telephone line without
errors at the receiving end.
b) Select two other ranges of frequency at your preferences with higher SNR, and compare your
results with (a). (For instance, the SNR can be selected from 26 dB to 50 dB.)
c) Repeat (b) with lower SNR (i.e. below 25 dB), and compare your findings.
d) Analyse your observation from your answers in (a), (b) and (c)
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