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2026-03-22 20:08:59 +01:00
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# Signal-to-Noise Ratio
is defined as some variation of $$ \frac{P_{signal}}{P_{noise}} $$.
In analog, e.g. radio voice communications, it thus describes how clearly the desired signal is distinguishable from noise/interference.
In digital communications, it determines the maximum possible amount of data that can be reliably transmitted
as stated by the Shannon-Hartley theorem.

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# Channel access method for shared mediums