A reorganized and comprehensive major revision of a classic textbook. This text provides a bridge between introductory courses in digital communications and more advanced courses in information theory. Completely updated to cover the latest developments. It presents state-of-the-art error control techniques.

• Mathematical background required is kept to a minimum.

• Fundamental ideas from modern algebra necessary to understand algebraic coding techniques are covered in one chapter.

• Fundamentals and philosophy of the first edition remain unchanged.

• 9 new chapters.

• Coverage of the fundamentals of coding and the applications of codes to the design of real error control systems.

• Coverage of all developments in coding since the first edition was published—Contains the most recent developments of coded modulation, trellises for codes, soft-decision decoding algorithms, turbo coding for reliable data transmission and other areas. There are two new chapters on Reed-Solomon codes & concatenated coding schemes.

• New and revised problems—Most problems are direct applications of material covered in the text. Some more challenging problems are included for advanced students.

• Hundreds of new and revised examples—And more than 200 illustrations of code structures, encoding and decoding circuits and error performance of many important codes and error control coding systems.