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Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) · Cisco
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SNR (Signal-to-Noise Ratio) measures how strong the signal is compared to background noise, and it is calculated as: SNR=RSSI−Noise Floor\text{SNR} = \text{RSSI} - \text{Noise Floor}SNR=RSSI−Noise Floor RSSI (D): Represents the received signal strength. Noise floor (B): Represents the level of background interference.
SNR: signal-to-noise ratio RSSI: Received Signal Strength Indicator NF: Noise floor SNR(dB) = RSSI(dBm) - NF(dBm) RSSI is the power of the received signal.
SNR (dB) = P received_signal (dBm) - P noise (dBm)