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← Language & CommunicationWhat happens to the coding rate in a communication channel when the entropy of the source increases?
A)It remains constant, fixed encoding
B)It decreases linearly with entropy
C)It decreases due to quantization errors
D)It must decrease to maintain fidelity✓
💡 Explanation
As the source entropy increases, more information must be encoded per unit time. The coding rate, therefore, must decrease to avoid exceeding the channel capacity and introducing unacceptable error rates, because the available bandwidth is finite, rather than change encoding or introduce quantization errors.
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