Answered: We need to upgrade a channel to higher…

We need to upgrade a channel to higher bandwidth. Answer the following questions: How is the rate improved if we double the bandwidth? How is the rate improved if we double the SNR? Show all steps.

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter8: Data And Network Communication Technology

Section: Chapter Questions

Problem 2PE

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We need to upgrade a channel to higher bandwidth. Answer the following questions:

How is the rate improved if we double the bandwidth?
How is the rate improved if we double the SNR?

Show all steps.

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For data is transmitted over twisted-pair cable, you have these characteristics: A signal's power on the channel is 60 dB, signal attenuation is 2 dB per 100 meters, and average noise power on the cable is 0.15 dB per meter. Answer the following questions: What's the S/N ratio at the end of a 60-meter channel? What's the S/N ratio at the end of a 1.5-kilometer channel? What's the maximum channel length if the receiving device requires at least 25 dB of S/N ratio for reliable operation?
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