Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 4 (Q.No. 24)
24.
A communication channel with AWGN operating at a signal to noise ratio SNR >> 1 and bandwidth B has capacity C1. If the SNR is doubled keeping B constant, the resulting capacity C2 is given by
C2 ≈ 2C1
C2 ≈ C1 + B
C2 ≈ C1 + 2B
C2 ≈ C1 + 0.3B
Answer: Option
Explanation:

C = B log2[1 + SNR]

C = B log2[SNR]

C' = B log2[2SNR] = B log2 SNR + B log22

C' = C1 + B.

Discussion:
Be the first person to comment on this question !

Post your comments here:

Your comments will be displayed after verification.