What is a Baseband Equivalent Signal in Communications?

Is the Imaginary Part of QAM Real?

How is Data Sent? An Overview of Digital Communications

How are Complex Baseband Digital Signals Transmitted?

What is PAPR? and its relationship to OFDM

Complex Baseband Representation of a Passband Signal

What is a Discrete Fourier Transform (DFT) and an FFT?

How to Avoid ISI in Digital Communications: Nyquist Zero ISI Theorem

Quadrature Amplitude Modlation (QAM): Explained

But what is the Fourier Transform? A visual introduction.

OFDM and the DFT

Background 3: Complex Baseband Model

Channel Estimation for Mobile Communications

Algebra Basics: What Is Algebra? - Math Antics

LECT-44 : Passband data transmission (INTRODUCTION)

How are Signals Reconstructed from Digital Samples?

Autocorrelation and Power Spectral Density (PSD) Examples in Digital Communications

#170: Basics of IQ Signals and IQ modulation & demodulation - A tutorial

How are OFDM Sub Carrier Spacing and Time Samples Related?

Baseband vs Broadband

What is Negative Frequency?