Week 12
Channel Coding and Link Simulation
I use the saved course file to reconnect sampling, baseband transmission, digital modulation, and error-rate analysis.
What I connect in this unit
A block code adds parity to data bits, increasing distance between valid codewords and providing coding gain. In an AWGN link, encoder, modulator, noise, and decoder must share a consistent Eb/N0 definition before coded and uncoded BER curves are compared.
Concept map
- Block codes
- Coding gain
- AWGN links
- BER-curve comparison
Technical anchor
An (n,k) block code has rate R = k/n, and symbol-energy scaling at a given Eb/N0 must account for the extra transmitted parity bits.
How I review it
Use the all-zero codeword to check encoder and syndrome decoder logic, then align BER axes and Eb/N0 definitions for uncoded and hard-decision coded links.
Connection to the full course
Unit 12 of 12. Unit numbers expand topics from the saved file into a concept sequence, not an attendance-week record.