The main objective of channel coding is to?

  • ARemove every redundant bit
  • BIntroduce structured redundancy to improve error detection or correction
  • CSuppress the RF carrier only
  • DReduce sampling rate below Nyquist
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Correct Answer: B. Introduce structured redundancy to improve error detection or correction
Explanation: Channel coding deliberately adds controlled redundancy so the receiver can detect or correct transmission errors.
Reference: Standard communication systems: channel coding