Introduction to digital communications explores the basic principles in the analysis and design of digital communication systems including design objectives constraints and trade offs after portraying the big picture and laying the background material this book lucidly progresses to a comprehensive and detailed discussion of all critical . 2008 introduction to digital communications 12 disadvantages ocomplex signal processing osynchronization problems onon graceful degradation in performance as the snr decreases 2008 introduction to digital communications 13 performance metrics oin analog communications we want. This book provides an extensive introduction to the theoretical fundamentals of digital communications covering single input single output siso multiple input multiple output mimo and time variant systems supplemented by representative examples and computer simulations. Lecture notes1 an introduction to digital communications armand m makowski 2 1 c 1997 2011 by armand m makowski 2department of electrical and computer engineering and institute for systems re search university of maryland college park md 20742