However, the text assumes a prerequisite familiarity with basic signals and systems (including Fourier analysis) and elementary probability. A student lacking these foundations may struggle with the early chapters. Therefore, the phrase "Introduction" in the title refers to an introduction to digital communications specifically, not to communications engineering in general.

(or error control) adds redundant bits so the receiver can fix mistakes along the way. Taking Flight: Modulation

Systems-oriented, using block diagrams rather than physical device realizations.

No textbook is without flaws. Some readers might find the initial chapters on probability and stochastic processes a bit rushed if they do not have a prior background in statistics. While Grami includes a review chapter, it serves better as a refresher than a comprehensive first-time lesson.

Would you like a sample study plan or a list of key chapters to focus on for a particular goal (e.g., wireless, satellite, or optical)?