Mobile Wireless Communications

Описание

x Preface
University. The second-semester course following this first course then covers material
from the second part of the book, as well as additional material based on current reading
and research.
The second part of the book provides more advanced material. It begins in Chapter 9
with a thorough discussion of the performance analysis of wireless systems, building on
some of the items touched on only briefly in earlier chapters. Chapter 10 then describes the
third-generation systems W-CDMA, cdma2000, and GPRS in depth, again building on
the earlier discussion of second-generation systems in Chapter 8. The focus of this chapter
is on data and multimedia wireless communication using packet-switched technology. A
brief review of the concept of layered architectures is included, showing, in particular,
how GPRS interfaces with Internet-based packet networks. Chapter 11 then discusses the
access and scheduling techniques used or proposed for use in cellular systems. The book
concludes with a discussion of wireless LANs (WLANs) and Personal-Area Networks
(PANs). The WLAN discussion focuses on Wi-Fi and extensions thereof to much higher
bit-rate wireless LANs; the PAN discussion deals with the Bluetooth system.
The book can, therefore, be used for either a single-semester course on wireless systems
or for a full-year course. A single-semester course might cover the first eight chapters,
as has been the case at Columbia, or might use as examples of current wireless systems
material drawn from sections of Chapters 8, 10, and 12. A full-year course would cover
the entire book. The material in the book could also be used in conjunction with a course
on communication systems, providing the application of communication technology to
the wireless area.
The only prerequisites for the book, aside from a certain technical maturity commonly
available at the Senior or first-year graduate level, are a knowledge of basic probability
and linear algebra. There is no prior knowledge of communication theory and communication systems assumed on the part of the reader, and the material in the first part of
the book dealing with modulation and coding, for example, is meant to be self-contained.
Those readers with some prior knowledge of communication systems should find the tutorial discussion in the coding and modulation chapters a useful review, with the specific
application of the material to wireless systems further solidifying their knowledge of the
area.
The author would like to acknowledge the help of a number of individuals with whom
he worked during the writing of this book. In particular, the author is indebted to the
students who took the wireless course at Columbia, using the preliminary notes covering
the material, and to the instructors with whom he shared the teaching of the course. He
would like to particularly acknowledge the help and co-teaching support of Professor
Andrew Campbell of the Electrical Engineering department at Columbia; Professor Tom
LaPorta, formerly of Bell Labs and currently with the Computer Science department of
Pennsylvania State University; and Dr. Mahmoud Naghshineh of IBM. The author has,
at various times, carried out research in the wireless area with each of these colleagues as
well. The questions raised and answered while teaching the course, as well as conducting
research in the area, were invaluable in writing this book.
Further thanks are due to Sanghyo Kim for help with preparing the book figures, to
Edward Tiedemann of Qualcomm for help with the material on cdma2000, Dr. Chatschik
Bisdikian of IBM for help with the section on Bluetooth, and Dr. Krishan Sabnani for

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