Explain the need for error detection and correction in digital communi

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Module 6: Information Coding and Decoding

20257m

Explain the need for error detection and correction in digital communication systems.

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Need for error control: Channel noise causes bit errors → unreliable. Techniques: Detection (parity, CRC) + ARQ, Correction (FEC Hamming, convolutional, Turbo) with $t=\lfloor(d_{min}-1)/2\rfloor$ . Ensures reliability.

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