: OFDM is a digital modulation technique that divides a channel into several sub-channels, reducing interference and making it a key technology for 4G/5G networks.
"Wireless Communications from the Ground Up: An SDR Perspective" by Qasim Chaudhari is a technical guide designed to teach digital signal processing and SDR fundamentals through visualization rather than complex mathematics. The book, praised in the SDR community for its focus on practical implementation, covers topics ranging from modulation to advanced system design using GNU Radio examples. Learn more about the textbook and read a full review at RTL-SDR.com . Wireless Communication From The Ground Up Pdf