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This book is now in its third edition. The networking picture has changed radically since the second edition. The most important is the huge increase in wireless networks, including 802.11, cellular networks, Bluetooth, WAP, infrared, and others. Much has changed in the fields of computer networks and communications.
The third edition has been updated to incorporate new advances in communication and networking technology that have emerged since the second edition.
The book covers all the main topics and problems of computer networks and communications: network standards, architecture, classification and topology, network access means, which protocol to use, routing policies and algorithms, distributed computer and network applications and services, etc.
The book is liberally illustrated and written in simple language. It starts by explaining the basic principles of data networking and of layered protocols upon which all modern data communications are based. It then goes on to explain the transmission medium and transmission technologies, going through many detailed terms relevant to local area network technologies including Ethernet, wireless LAN, extended LANs and data link services.
This book also covers modern IP networks including wireless MAN, mobile based computer networks and the Internet.
Finally this book covers the transport layer and application layer services and protocols. Our goal is that readers who only want to “dip in” to have a single topic explained should go away satisfied - able to build on any previous knowledge of a given subject.
The book is organized to serve as a reference as well as a source of learning. Therefore each chapter is self-contained in many respects.