本书是无线通信课程的*威教材，面向那些已经熟悉诸如概率论、通信原理和基本电磁学等技术概念的学生与工程师。全书深入浅出地讨论了无线通信技术与系统设计方面的内容，包括无线网络涉及的所有基本问题，特别是3G系统和无线局域网的问题，并对无线网络技术进展和全球主要的无线通信标准给出了论述。全书共分8章，集中讲述了蜂窝的概念、移动无线电传播、调制技术、多址技术等，结合理论对无线通信系统的各个方面做了精辟论述和统计分析。
Preface
The second edition of this text has been written to initiate the newcomer to wireless personal communications, one of the fastest growing fields in the engineering world. Technical concepts which are at the core of design, implementation, research, and invention of wireless communication systems are presented in an order that is conducive to understanding general concepts, as well as those specific to current and evolving wireless communication systems and standards. This text is based upon my experiences as an educator, researcher, technical trainer, and consultant, and continues to be modeled from an academic course first developed for electrical engineering students in 1990, when there were fewer than five million cellular subscribers worldwide. As we begin the 21st century, more than 600 million people, about 10% of the world＇s population, pay a monthly subscription for wireless telephone service, and this figure will approach 50% by the end of the first decade of the 21st century.
This text continues to evolve, and has been modified and updated since its first edition, making it a useful book for practicing engineers, as well as for researchers, graduate students, and undergraduate students. The text has been prepared to provide fundamental treatment about many practical and theoretical concepts that form the basis of wireless communications, and has been designed for easy but thorough treatment of vital material that all wireless practitioners must be comfortable with. I have tried to emphasize the technical concepts with worked example problems, and numerous, carefully crafted homework problems at the end of each chapter that are based on real-world industry issues. The second edition contains dozens of new homework problems and examples, as well as up-to-the minute technical details of the many emerging wireless standards throughout the world, making this book particularly useful for industry shortcourses or state-of-the-art academic classroom use.
References to journal articles are used liberally throughout this text to enable the interested reader to delve into additional reading that is always required to master any field. To support newcomers to the wireless field, and at the request of the Institute of Electrical and Electronics Engineers (IEEE), I have also prepared a low-cost two volume compendium of many of the originaljournal articles that first taught the fundamentals that are now used throughout the wireless industry-this compendium series is a useful, but not required, supplement to this text. Whether you intend to use this book for individual study, or for classroom use, or for use as a handbook, this text has been written as a complete, self-contained teaching and reference book. The numerous examples and problems found throughout the text have been provided to help the reader solidify the material.
This book has been designed for the student or practicing engineer who is already familiar with technical concepts such as probability, communication theory, and basic electromagnetics. However, like the wireless communications industry itself, this book combines material from many different technical disciplines, so it is unlikely that any one person will have had introductory courses for all of the topics covered. To accommodate a wide range of backgrounds, important concepts throughout the text are developed from first principles, so that readers learn the foundations of wireless communications. This approach makes it possible to use this book as a handbook or as a useful teaching toolin a classroom setting.
The material and chapter sequence in this text have been adapted from an entry-level graduate course which I first taught in 1991 at the Virginia Polytechnic Institute and State University. Chapter 1 demonstrates the historic evolution of the wireless communications industry, and the evolution of wireless systems from first generation analog to second generation (2G) digital systems. Chapter 1 also documents the rapid early growth of cellular radio throughout the world and provide
Theodore S.Rappaport：得克萨斯大学电子工程系教授，Prentice Hall通信工程与新兴技术系列丛书主编，1990年成立移动与便携无线电研究小组。
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