Power delay profile (PDP) — multipath power vs delay

What a power delay profile is, how it shows multipath taps vs excess delay, and how it connects to delay spread and wireless channel models.

Multipath channel models: scattering function

Multipath & PDP (same on every page in this path) 1. Power delay profile → 2. Scattering function (you are here) → 3. TDL modeling Tools: PDP demo · 3GPP TDL Understand various characteristics of a wireless channel through multipath channel models. Discuss Wide Sense Stationary channel, uncorrelated scattering channel, wide sense stationary uncorrelated scattering … Read more

QAM modulation simulation — rectangular constellations in Matlab and Python

Digital Modulations 101 — 5 lessons (same on every page in this path) 1. BPSK → 2. QPSK → 3. M-PSK sim → 4. QAM sim (you are here) → 5. EVM Tools: BER vs Eb/N0 · EVM → SNR · Eb/N0 ↔ SNR Also on the Matlab → Python path (lesson 3 of 4): … Read more

Clarke’s Rayleigh fading model — sum-of-sinusoids simulation

Fading & Diversity — 6 lessons (same on every page in this path) 1. Rayleigh BER → 2. Clarke’s model (you are here) → 3. Young’s model → 4. SIMO models → 5. Selection combining → 6. MRC Tools: BER vs Eb/N0 · 3GPP TDL · CDL / Doppler Lesson 2 of 6. You saw … Read more

Young’s model for Rayleigh fading — filtered Gaussian discrete-time simulation

Fading & Diversity — 6 lessons (same on every page in this path) 1. Rayleigh BER → 2. Clarke’s model → 3. Young’s model (you are here) → 4. SIMO models → 5. Selection combining → 6. MRC Tools: BER vs Eb/N0 · 3GPP TDL · CDL / Doppler Lesson 3 of 6. Another standard … Read more

Fading channel – complex baseband equivalent models

Fading Lab path: Fading models → Young → Clarke SOS → BPSK BER Rayleigh → MRC  Keyfocus: Fading channel models for simulation. Learn how fading channels can be modeled as FIR filters for simplified modulation & detection. Rayleigh/Rician fading. Introduction A fading channel is a wireless communication channel in which the quality of the … Read more