One of the very first books published on the social iMPACT of the mobile phone
was Timo Kopomaa’s The City in Your Pocket: Birth of the Mobile Information Society.
The book, published in 2000, was based on research that Kopomaa had under-
taken for Nokia and Sonera as part of his doctoral studies in the Centre for Urban
and Regional Studies at the Helsinki University of Technology. The first line he
writes in the book is peculiar: ‘Mobile communication is not a serious matter’. By
this, we assume he is referring to a view of the world that would regard the mobile
phone as little more than an unremarkable fact of everyday life – a simple play-
thing for the young, or a productivity tool for the business executive and busy
parent.
European Research Framework programs are public policy instruments designed
to strengthen European competitiveness through cooperation. Although they have
a fixed time frame, determined research themes, and a specific expected iMPACT,
the achievements in research and development (R&D) made by these funded proj-
ects pave the way for a research continuum.
European Research Framework Programs are a public policy instrument to
strengthen European competitiveness through cooperation. Although they have a
fixed timeframe, determined research themes, and specific expected iMPACT, the
achievements in research and development (R&D) made by the funded projects
pave the way for a research continuum.
In the past few decades, a technological revolution has occurred that has changed
the way we live in dramatic ways. This technological revolution is the result of
the emergence and evolution of a wide variety of new wireless networking tech-
nologies. Now people using these technologies are able to access the network and
control many applications at will with their handheld devices anywhere, anytime.
Although these technologies have made a long lasting iMPACT in the revolution, it
has also opened up various challenging issues which are yet to be resolved to make
them more efficient and cost-effective.
Transmit power in wireless cellular networks is a key degree of freedom
in the management of interference, energy, and connectivity. Power
control in both uplink and downlink of a cellular network has been
extensively studied, especially over the last 15 years, and some of the
results have enabled the continuous evolution and significant iMPACT of
the digital cellular technology.
The multiple-input multiple-output (MIMO) technique provides higher bit rates
and better reliability in wireless systems. The efficient design of RF transceivers
has a vital iMPACT on the implementation of this technique. This first book is com-
pletely devoted to RF transceiver design for MIMO communications. The book
covers the most recent research in practical design and applications and can be
an important resource for graduate students, wireless designers, and practical
engineers.
The fi rst edition of this book came about because Regina Lundgren had always been
fascinated with communication. She started writing novels in the third grade. When she
was asked on her fi rst day at the University of Washington what she hoped to do with her
degree in scientifi c and technical communication, she replied, “I want to write environ-
mental iMPACT statements.” When Patricia Clark hired her to work at the Pacifi c Northwest
National Laboratory to do just that, she was overjoyed.
The book is written for those concerned with the design and performance of satellite
communications systems employed in fixed point-to-point, broadcasting, mobile, radio-
navigation,data-relay,computercommunications,andrelatedsatellite-basedapplications.The
recentrapidgrowthinsatellitecommunicationshascreatedaneedforaccurateinformationon
both satellite communications systems engineering and the iMPACT of atmospheric effects on
satellite link design and system performance. This book addresses that need for the first time
in a single comprehensive source.
Radio frequency spectrum is a scarce and critical natural resource that is utilized for
many services including surveillance, navigation, communication, and broadcast-
ing. Recent years have seen tremendous growth in the use of spectrum especially by
commercial cellular operators. Ubiquitous use of smartphones and tablets is one
of the reasons behind an all-time high utilization of spectrum. As a result, cellular
operators are experiencing a shortage of radio spectrum to meet bandwidth
demands of users. On the other hand, spectrum measurements have shown that
much spectrum not held by cellular operators is underutilized even in dense urban
areas. This has motivated shared access to spectrum by secondary systems with no
or minimal iMPACT on incumbent systems. Spectrum sharing is a promising
approach to solve the problem of spectrum congestion as it allows cellular operators
access to more spectrum in order to satisfy the ever-growing bandwidth demands of
commercial users.
Recent advances in wireless communication technologies have had a transforma-
tive iMPACT on society and have directly contributed to several economic and social
aspects of daily life. Increasingly, the untethered exchange of information between
devices is becoming a prime requirement for further progress, which is placing an
ever greater demand on wireless bandwidth. The ultra wideband (UWB) system
marks a major milestone in this progress. Since 2002, when the FCC allowed the
unlicensed use of low-power, UWB radio signals in the 3.1–10.6GHz frequency
band, there has been significant synergistic advance in this technology at the cir-
cuits, architectural and communication systems levels. This technology allows for
devices to communicate wirelessly, while coexisting with other users by ensuring
that its power density is sufficiently low so that it is perceived as noise to other
users.
