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Defines the noise margin of the system.
If you meant or Sampling , those are covered extensively in the first few chapters.
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Digital communication conveys discrete information using signals optimized for transmission over physical channels. Compared with analog communication, digital methods provide improved noise immunity, efficient multiplexing, robust error control, and easier encryption and data processing. Key components of a digital communication system include source encoding, channel encoding, modulation, transmission medium, demodulation, and decoding.
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Detailed comparisons of Unipolar, Polar, Bipolar, RZ (Return-to-Zero), NRZ (Non-Return-to-Zero), and Manchester encoding schemes based on their DC balance and bandwidth efficiency.