Topic: Communication Systems
A communication channel disturbed by additive white Gaussian noise has a bandwidth of 4 kHz and SNR of 15. The highest transmission rate that such a channel can support (in k-bits/sec) is
- A. 16
- B. 1.6
- C. 3.2
- D. 60
Answer: A. 16
Explanation: According to Shannon's channel capacity theorem, $C=B\log_{2}(1+SNR)$. Substituting the values, $C=4\log_{2}(1+15)=4\log_{2}(16)=4\times4=16$ kbps.