Wifi modulation

1. What is Wi-Fi modulation?
2. Does Wi-Fi use QAM or QPSK?
3. Is Wi-Fi amplitude modulation?
4. How is Wi-Fi data modulated?

What is Wi-Fi modulation?

Modulation is the act of changing a signal to transmit useful data. There are three aspects of a signal that can be modulated; amplitude, frequency, and phase.

Does Wi-Fi use QAM or QPSK?

Wi-Fi 5 uses 256-QAM (8 bits) and Wi-Fi 6 uses 1024-QAM which has 1024 points, representing 0-1023 or 0000000000-1111111111 which is 10 bits so that's there's a 20% capacity increase over Wi-Fi 5.

Is Wi-Fi amplitude modulation?

Technologies like 802.11 standards (a.k.a. WiFi) use amplitude modulation while other radio technologies continue to use digitally modulated frequency modulation.

How is Wi-Fi data modulated?

Wireless LANs use digital modulation to transmit digital signals. An RF signal can be modulated by manipulating the frequency, phase, or amplitude. Amplitude modulation is not sufficient alone for wireless LAN technologies since the amplitude is often affected by interference.