Data communications for engineers

A knowledge of data communications is essential for many communications and electronic engineers, technicians, and students. But until now, they couldn't find a book written from their perspective. This book fills that gap. It opens with an introduction to data communications, covering some of the underlying principles and jargon. Then the concept of layered communications--so important in open systems--is fully explained. Other chapters deal with physical communications channels, baseband digital transmission, analog data transmission, error control and data compression codes, physical layer standards, the data link layer, the higher layers of the protocol hierarchy, and local area networks (LANs). Finally, there is a prediction of future developments, including higher data rates and easier connectivity of computers and other information sources.