A Wi-Fi access point is transmitting at (P) 20 W. A client is 200 meters away with a local noise power (N) of -70 dB. Assume that the received signal power (S) falls off as the square of the distance (r) between the access point and client (S = P/(4 pi r^2)). What is the SNR in dB? What is the theoretic capacity assuming a bandwidth of 20MHz?

A Wi-Fi access point is transmitting at (P) 20 W. A client is 200 meters away with a local noise power (N) of -70 dB. Assume that the received signal power (S) falls off as the square of the distance (r) between the access point and client (S = P/(4 pi r^2)). What is the SNR in dB? What is the theoretic capacity assuming a bandwidth of 20MHz?

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