Items related to Broadband Coding, Modulation, and Transmission Engineering
Synopsis
This book provides an engineering description of the methods used to process and transmit broadband signals. As such, it includes both the analog and digital transmission of data and graphic information, as well as multiplexed voice transmission. The technological developments of the past decade have brought to the system designer a seeming wealth of possibilities for communications transmission. The selection of the best method for a given application, however, may be rendered difficult because much of the information is scattered among several texts and many different published papers. This text brings together in one volume a treatment of all broadband communication system types at a level readily understandable by the practicing engineer. It allows a detailed understanding and evaluation of each system type, and provides the information needed to structure special-purpose transmission systems. The material has been developed over a period of ten years, during which the author has been teaching a popular continuing engineering education course on Broadband Communication Systems several times per year. This course often is attended by recent engineering graduates who express the need for more information at the senior and graduate level on the engineering of transmission systems for high-speed data and video, as well as for multi-channel voice. Thus, the book has been written not only for the practicing engineer, but also to supplement more theoretical texts used in telecommunications engineering courses. Accordingly, problems are included at the ends of most of the chapters. Chief engineers and engineering managers also will find portions of the text useful in understanding the basic ideas and structure of broadband communication system for overall end-to-end system planning purposes. While the emphasis of the book is on broadband systems and technology, the principles are applicable generally to narrowband systems as well. Readers interested in speech coding techniques are referred to the book Digital Telephony and Network Integration, [Van Nostrand Reinhold Company, Inc.], co-authored with Eugene Strange. Such media as high-frequency radio are not included because of their limited bandwidth per channel. The term wideband is used by some to designate systems up to 1.5 or 2.0 Mb/s, with higher transmission rates being designated broadband. Others use the term broadband for any system whose bandwidth is in excess of voice bandwidth. This text uses the name broadband to encompass all systems operating at rates beyond those of voice systems, without further delineation..
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About the Author
Bernhard E. Keiser, DScEE, is a Consulting Engineer in Telecommunications with offices at 2046 Carrhill Road, Vienna, VA 22181, (703-281-9582). He is a Registered Professional Engineer in Virginia and Maryland, and served in a number of advanced engineering and management positions in several major corporations prior to establishing his own consulting engineering practice.
Dr. Keiser has been involved in the planning and design of numerous microwave radio systems, including systems for military applications in remote areas, as well as commercial systems. He also has done extensive studies and design in the control of microwave fields to allow satellite and microwave radio systems to co-exist in the same spectrum. Dr. Keiser also has many years of experience in satellite systems. He worked in the early development of several domestic satellite systems, performed transponder loading studies, and developed test plans for the prediction of transmission impairments. In addition, he has performed numerous link studies.
Dr. Keiser holds two U. S. patents for the control of microwave fields, and has published twenty-six papers in telecommunications and related areas. He is a Fellow of the IEEE, the Washington Academy of Sciences and the Radio Club of America, and has served as Chairman of the Northern Virginia Section of the IEEE. He is listed in Who's Who in America, Who's Who in Engineering, and American Men of Science. He is the author of the text, Broadband Coding, Modulation and Transmission Engineering, published by Prentice-Hall in 1989.
From the Back Cover
Broadband Coding, Modulation, and Transmission Engineering is a comprehensive text that brings together in one volume the methods used to process and transmit broadband signals in terms familiar and understandable to the practicing engineer.
Bernhard E. Keiser now introduces system designers to a new interpretation of technological advances of communications transmission developed over the past decade. Principles are also applicable from a general viewpoint, to narrowband systems as well.
Although geared toward the practicing engineer, this text additionally serves as an outstanding supplement to more theoretical material utilized in telecommunications engineering courses.
Some of the topics explored include: * Detailed understanding and evaluation of each broadband communications system type, and the information integral to structuring special purpose transmission systems * High definition television * Coherent optical fiber transmission * Trellis-coded modulation * New satellite transmission technology * Analog and digital transmission of data and graphic information * Multiplexed voice transmission * Practical exercise problems at the end of most chapters
Excerpt. © Reprinted by permission. All rights reserved.
1.1 TYPES OF BROADBAND SYSTEMS
As a prelude to the discussion of the various types of broadband systems, this text first considers the preparation of information for transmission. Since an increasing amount of transmission is being handled on a digital basis, Chapter 2 is devoted to digital transmission, and includes a discussion of the types of switching being used, basic digital modulation techniques, coding, and error control. Also included are discussions of the digital hierarchy and digital transmission services. A discussion of analog modulation techniques can be found in Chap. 4. The conversion of broadband analog information, in the form of video, into digital forms is the subject of Chap. 3.
Beginning with Chap. 4, the text is devoted to telecommunications facilities. Both analog and digital transmission are discussed, but the emphasis is on digital because of its widespread prevalence and increasing importance. The primary facility types covered are microwave radio, satellite, and fiber optics. Subsequent chapters deal with coaxial carrier transmission, both for cable television and for common-carrier telephony. The text concludes with a chapter on millimeter waveguide transmission, and comments on future uses and trends in broadband communication systems.
Engineers being introduced to broadband communication systems technology may ask logically,
"if a carrier simply provides a system as part of a service offering, why do I need a knowledge of the system's characteristics?" There are many positive answers to this question. (1) The transmission system is part of the end-to-end system, and thus its characteristics affect the capabilities and behavior of the
end-to-end system. (2) The type of transmission system a user receives from a carrier depends upon what facilities are available between the points to be connected at the time when the connection is required. (3) Specialized transmission requirements may call for detailed technical discussions with the carrier. (4) Your requirements may necessitate the design of a special transmission system. (5) You may be involved in designing a new system for a foreign country
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