QAM (Quadrature Amplitude Modulation) is a technique that encodes information into both the amplitude and phase of a signal. QAM is used in Wi-Fi, 4G, 5G, and in optical communication networks.
Video upon Modulation Basics:
https://www.youtube.com/watch?v=c3eMoHuPRy0
In this video, we break down QAM in a simple and easy-to-understand way:
∗ How QAM represents data using constellation diagrams
∗ How the receiver decodes signals even with noise and interference
∗ Why spacing between signals is crucial for reducing errors
∗ How modern networks use 16-QAM, 64-QAM, and even 1024-QAM to increase data speeds
Check out my blog for an introduction to this video:
https://www.wirelessexplained.com/what-is-qam-modulation/
▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
0:00 - Introduction
0:30 - Constellation Diagram
0:53 - Sine and Cosine Components
1:44 - Bit 0 & 1 Signal Transmission & Reception
2:27 - Noise & Signal Distortions
3:33 - Bit 0 & 1 mapping in Constellation Diagram
4:02 - Transmit Power Limitation
4:27 - Arranging Constellation Points for Transmission
5:30 - Various QAM Modulations
6:03 - Our website
Music: Erik SATIE - Gymnopedies 1