: A powerful polynomial division method. The sender appends a sequence of bits (remainder) derived from dividing the data bitstream by a predetermined generator polynomial. The receiver performs the same division; a non-zero remainder indicates a transmission error. Summary Reference Table
The alteration of the signal shape due to different frequency components traveling at different speeds.
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In-depth look at encoding techniques (NRZ, Manchester, Differential Manchester), modulation (ASK, FSK, PSK, QAM), and PCM (Pulse Code Modulation).
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The efficiency of data transmission heavily relies on the physical media used to carry signals. Textbooks in this domain categorize media into two primary types: Guided Media (Wired)
Omnidirectional waves used for multicast communications, such as AM/FM radio and cordless phones.
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The loss of signal energy as it travels over a distance. This is compensated for by using amplifiers or repeaters.