The textbook Digital Communication is often considered a "gold standard" for graduate-level courses. It doesn't just explain how systems work; it explains why they are designed that way based on the laws of physics and information theory. Key Pillars of the Text
| Feature | John R. Barry | Proakis (5th Ed) | Sklar (2nd Ed) | | :--- | :--- | :--- | :--- | | | Discrete-time/DSP | Analytical mathematics | Conceptual/Physics | | Equalization depth | Excellent (DFE, MLSE) | Good | Moderate | | Synchronization | Integrated with modem design | Separate chapter | Light coverage | | MIMO/OFDM | Moderate | Extensive (later editions) | Minimal | | Best for | Practicing DSP engineers | Graduate researchers | Undergraduates | digital communication john r. barry pdf