For the latest edition of their undergraduate introductory textbook, Haykin (McMaster U.) and Moher, emphasize analog communications as the necessary background for understanding digital communications, have extensively modified the organization, and have moved supplementary material to their website. They cover the representation of signals and systems, amplitude modulation, angle modulation, probability theory and random processes, noise in continuous wave modulation systems, the transition from analog to digital, baseband digital transmission, digital band-pass transmission techniques, and information theory and coding. No dates are cited for previous editions.
