Programming
Attenuation and white noise, Data Transmission homework help

Question Description

Can you help me understand this Computer Science question?

Describe real-world examples of attenuation and white noise. Examine the effect on the information-carrying capacity of the link and present a way to avoid these types of interruptions.

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Final Answer

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White noise is derived but the adjective "white"has been used here in order to describe this particular type of noise because of how the light light works. White light is light that is composed of so many different colors(frequencies) of light that have been put together in a combination (a prism or a rainbow separates white light back into its component colors). In the same way, white noise is a combination of all of the different frequencies of sound. You can think of white noise as 20,000 tones all playing at the same time. Static on a TV would be considered as white noise. Attenuation is the reduction in strength of a signal; it occurs with any type of signal whether it is a digital or analog. 

Reference Stallings, W. (2009 ). Business Data Communications: Custom edition (6th edition). Upper Saddle River, NJ: Prentice Hall.


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University of Maryland

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