The concept of “smart city” is often used implying that the Reader has a clear and
common notion of what it means. However, in the current literature it is very hard
to find a precise definition. What is even more interesting, it is not so easy to find a
precise definition of what a city is.
The objective of this book is to allow the Reader to predict the received
signal power produced by a particular radio transmitter. The first two
chapters examine propagation in free space for point-to-point and
point-to-area transmission, respectively. This is combined with a dis-
cussion regarding the characteristics of antennas for various purposes. In
chapter 3, the effect of obstacles, whether buildings or mountains, is
discussed and analytical methods, whereby the strength of a signal is the
shadow of an obstacle can be predicted, are presented.
This book is an entry-level text on the technology of telecommunications. It has been
crafted with the newcomer in mind. The twenty-one chapters of text have been prepared
for high-school graduates who understand algebra, logarithms, and the basic principles of
electricity such as Ohm’s law. However, it is appreciated that many Readers require support
in these areas. Appendices A and B review the essentials of electricity and mathematics
up through logarithms. This material was placed in the appendices so as not to distract
from the main theme, the technology of telecommunication systems. Another topic that
many in the industry find difficult is the use of decibels and derived units. Appendix C
provides the Reader a basic understanding of decibels and their applications. The only
mathematics necessary is an understanding of the powers of ten
Fundamentals of WiMAX was consciously written to appeal to a broad audience, and to be of
value to anyone who is interested in the IEEE 802.16e standards or wireless broadband networks
more generally. The book contains cutting-edge tutorials on the technical and theoretical under-
pinnings to WiMAX that are not available anywhere else, while also providing high-level over-
views that will be informative to the casual Reader.
The aim of this book is to give an integrated presentation of the
specifications for Long Term Evolution (LTE) and LTE Advanced radio
interfaces, so that the Reader can gain an overview of their main
characteristics.
With this book at your fingertips, you, the Reader, and I have something in common. We share
the same interest in mobile radio channels. This area attracted my interest first in autumn 1992
whenImovedfromindustrytoacademiatofindachallengeinmylifeandtopursueascientific
career. Since then, I consider myself as a student of the mobile radio channel who lives for
modelling, analyzing, and simulating them. While the first edition of this book resulted from
my teaching and research activities at the Technical University of Hamburg-Harburg (TUHH),
Germany, the present second edition is entirely an outcome of my work at the University of
Agder, Norway.
This book stems from its ancestor Digital Transmission Theory,published by
Prentice-Hall in 1987 and now out of print. Following the suggestion of several colleagues who complained about the unavailability of a textbook they liked and adopted in their courses, laying a strong emphasis on wireless communication. We hope that those who liked the previous book will find again its flavor here,while new Reader, untouched by nostalgia, will judge it favorably.
T
his book covers basic communications theory and practical imple-
mentation of transmitters and receivers. In so doing, I focus on dig-
ital modulation, demodulation methods, probabilities, detection of
digital signals, and spread spectrum system design and analysis. This book
was written for those who want a good understanding of the basic prin-
ciples of digital wireless communication systems, including spread spec-
trum techniques. This book also provides a good intuitive and practical
approach to digital communications. Therefore it is a valuable resource for
anyoneinvolvedinwirelesscommunicationsandtransceiverdesignfordig-
ital communications. The Reader will gain a broad understanding of basic
communication principles for transceiver design, digital communications,
and spread spectrum, along with examples of many types of commercial
and military data link systems.
