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ECE544: Digital Communications
Fall 2025
Instructor
-
Prof. James S. Lehnert
- Office: MSEE 240
- Phone: 765-494-2362
- Email: lehnert@purdue.edu
- Office: MSEE 240
Course Description
The course provides an introduction to digital (including spread-spectrum) communication systems. Topics include analog message digitization, signal space representation of digital signals, binary and M-ary signaling methods, detection of binary and M-ary signals, and comparisons of digital communication systems in terms of signal energy and signal bandwidth requirements. Applications of spread spectrum to multiple-access systems and to secure communication systems are considered. Orthogonal frequency-division multiplexing (OFDM) is introduced.
A tentative syllabus is available.
Texts
Text for Course Material:
Wayne Stark, Introduction to Digital Communications ,
Cambridge University Press, 2023. (ISBN 978-1-009-22081-1))
[prices at amazon.com]
Alternative Texts for Course Material:
Michael B. Pursley, Introduction to Digital Communications ,
Prentice Hall, 2005. (ISBN 0-201-18493-1)
[prices at amazon.com]
John G. Proakis, Masoud Salehi, Digital Communications, 5th Ed., McGraw-Hill, Inc., 2007. (ISBN 0-07-295716-6) [prices at amazon.com]
Bernard Sklar and Fred Harris, Digital Communications Fundamentals and Applications, Third Edition , Pearson Education, 2021. (ISBN 0-13-458856-8) [prices at amazon.com]
Additional Course Information
- [Interact with Class Members]
- Announcements (Aug. 22, 2025)
- Course Notes, Videos, Handouts, Sample Exam Solutions (Copyright: J. Lehnert, Purdue Univ.)
- Course Policy
- Syllabus
Please send comments, suggestions and questions to lehnert@purdue.edu.