Digital Communication Systems Fundamentals & Theory

From Information Theory to Pulse Code Modulation: Building the Modern Digital Chain
What you'll learn
✓ Learn why "Gaussian" is the vital term for modeling physical-layer interference in real-world communication channels.
✓ Master Random Variables and the Q-function to accurately derive and predict Bit Error Rates (BER) in high-stakes noisy environments.
✓ Apply Shannon's Capacity Theorem to find the max data rate and navigate the fundamental Bandwidth-Power engineering tradeoff.
✓ Map the analog-to-digital journey through Sampling, Quantization, and encoding into robust Pulse Code Modulation (PCM) bitstreams.
✓ Course includes technical mindmaps to move back and forth between any topic quickly to see how they connect.
Requirements
● College-Level Calculus. Linear Algebra Fundamentals.
Description
Have you ever wondered why 5G is faster than 4G? Or how a satellite millions of miles away can send a clear image back to Earth despite massive interference?
The answer doesn't lie in the hardware—it lies in the mathematics.
Welcome to Digital Communication Systems (Part 1). This course is designed specifically for undergraduate students, research enthusiasts, and aspiring telecommunications engineers who want to move beyond "plug-and-play" formulas and truly understand the physics of information.
Led by Rahul Gulia, Ph.D. Candidate, a researcher in systems architecture, this course bridges the gap between abstract probability and practical digital engineering. We don't just show you the equations; we show you why they exist and how they define the "speed limits" of our universe.
What You Will Learn
• The Adversary: Deep dive into Thermal and White Noise. Understand why "Gaussian" is the most important word in noise modeling.
• The Probability Toolkit: Master the Random Variables and the Q-function required to predict system errors.
• The Ultimate Speed Limit: Learn Shannon's Capacity Theorem and discover why you can't outsmart the Bandwidth-Power tradeoff.
• The Digital Bridge: Follow the journey of an analog wave as it is Sampled, Quantized, and encoded into Pulse Code Modulation (PCM).
• Spectral Efficiency: Understand why "Bits per Second per Hertz" is the most expensive metric in the wireless industry.
Strategic Learning with Interactive Mindmaps
Digital Communication is a vast field where it is easy to get lost in the math. This course includes exclusive technical mindmaps to help you
• Navigate Complex Topics: Move back and forth between any topic quickly to see how they connect.
• Quick Revision: High-density visual summaries of the "Fourier Bridge" and the "Noise Hierarchy" for interview and exam prep.
Course Structure
This course is the first of a two-part series.
• Part 1 (This Course): Focuses on the Channel and the Source. We define the limits and prepare the data.
• Part 2 (Coming Soon): Focuses on Modulation and Transmission. We take our digital bits and launch them across the air using PSK, QAM, and OFDM.
Who this course is for
■ Undergraduates (EE/ECE/CE) and Graduate students. Network Engineers and Technical Managers.
Homepage

https://www.udemy.com/course/digital-communication-systems-fundamentals-theory/

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