Digital Communications 2: Directed and Practical Work

Digital communications comes into focus when the underlying theory is tied to the systems that use it. This book brings those two sides together: worked tutorials on the principles of information and transmission, followed by practical studies of communication equipment, coding, and modulation.

From information theory to transmitted signals

The tutorial section is organized around 33 directed problems with detailed solutions. It begins with entropy, information sources, compression, and coding, then moves into baseband transmission and digital carrier modulation. Examples span Huffman, Hamming, and cyclic coding; signal spectra; equalization; QAM; and transmission performance.

Work through the reasoning

Rather than treating digital communications as a list of terms, the problems give readers a structured way to engage with the calculations and concepts behind encoding and transmission. The progression links how information is represented to how signals behave as they pass through a channel.

Practical studies connect theory with implementation

Five practical works extend the tutorial material into experiments and system studies. They address transmission over two-wire cables, baseband systems for analog signals, line codes and carrier modulation, a QPSK modem studied with MATLAB and Simulink, and cyclic-code encoding and decoding.

For students, trainers, and working technicians

The authors describe the book as training material for engineering and related telecommunications study, while also identifying trainers and telecommunications technicians seeking further specialization among its intended readers. Its mix of solved problems and laboratory-oriented work makes it relevant to readers who want to study both the principles and the practical implementation of digital communication systems.