Digital Data Communications

A non-mathematical introduction to data communications aiming to provide a solid knowledge of how modern data communications, technology operates, a grounding in how it has evolved and where this evolution is likely to take it in the future. It includes a chapter on network topologies, as well as coverage of the telephone system, modems and modem standards and local area networks.

This text provides an introduction to the analysis and design of digital communication systems. The third edition has been updated with a discussion of modern technological advances, providing coverage of such topics as digital modulation and demodulation techniques, source coding, channel coding and decoding, spread spectrum signals, channel equilization, multiuser communications, and modulation and coding for fading multipath channels. In addition, the book has been reorganized so that each chapter builds on previous material, begins with an introduction to the history and classification of channel models and reviews important topics in probability and stochastic processes.

Overview of Data Communications; Basic Data Communication Principles; Physical Serial Communication Standards; Error Detection; Cabling Basics; Electrical Noise and Interference; Modems and Multiplexers; Introduction to Protocols; Open Systems Interconnection Model; Industrial Protocols; HART Protocol; Open Industrial Fieldbus and DeviceNet Systems; Local Area Networks; Appendix A: Numbering Systems; Appendix B: Cyclic Redundancy Check (CRC) Program Listing; Appendix C: Serial Link Design; Glossary.

Sustaining a competitive edge in today's business world requires innovative approaches to product, service, and management systems design and performance. Advances in computing technologies have presented managers with additional challenges as well as further opportunities to enhance their business models. Advances in Data Communications and Networking for Digital Business Transformation is a critical scholarly resource that examines transformative technologies from the perspective of data communication and networking and research challenges faced by the industry and research and development laboratories. Featuring coverage on a broad range of topics such as routing protocols, network visualization, and corporate social responsibility, this book is geared towards executives, managers, academicians, researchers, and students.

Introduction to Digital and Data Communications provides general overview of data communications and deals with telephone system from the stand point of data transfer usage to electrical specifications and impairments. Details are provided on some common error-detection and error-correction methods used in data digital and network communication system. Elaboration on hardware of low speed data communications as interfaced through the telephone system is discussed adequately and phase shifts and quadrature amplitude modulation schemes have been covered as an extension of the basics of the data communication system.

This book uses a practical approach in the application of theoretical concepts to digital communications in the design of software defined radio modems. This book discusses the design, implementation and performance verification of waveforms and algorithms appropriate for digital data modulation and demodulation in modern communication systems. Using a building-block approach, the author provides an introductory to the advanced understanding of acquisition and data detection using source and executable simulation code to validate the communication system performance with respect to theory and design specifications. The author focuses on theoretical analysis, algorithm design, firmware and software designs and subsystem and system testing. This book treats system designs with a variety of channel characteristics from very low to optical frequencies. This book offers system analysis and subsystem implementation options for acquisition and data detection appropriate to the channel conditions and system specifications, and provides test methods for demonstrating system performance. This book also: Outlines fundamental system requirements and related analysis that must be established prior to a detailed subsystem design Includes many examples that highlight various analytical solutions and case studies that characterize various system performance measures Discusses various aspects of atmospheric propagation using the spherical 4/3 effective earth radius model Examines Ionospheric propagation and uses the Rayleigh fading channel to evaluate link performance using several robust waveform modulations Contains end-of-chapter problems, allowing the reader to further engage with the text Digital Communications with Emphasis on Data Modems is a great resource for communication-system and digital signal processing engineers and students looking for in-depth theory as well as practical implementations.

This text on the data and network communications field is intended to be a junior or senior level text in an Electronics Technology or Technician program. The main feature that will set this text apart is that it is designed to present a solid background in all aspects of current Data and Network Communications. Written in a clear and easy to understand style, this text includes coverage of the latest technologies not only in terms of software and hardware but also in terms of topical content coverage.