Digital modulation: ASK, PSK, FSK, QAM
Digital Communication · Engineering
Study notes
BPSK: 0/180 deg (1 bit). QPSK: 4 phases (2 bits). 16-QAM: 16 points (4 bits): faster but needs SNR. WiFi adapts: good channel 256-QAM, bad BPSK. Constellation shows.