Very hard to design reusable Software
Design must be specific to problem on hand
Design must be general enough to address future problems and requirements
Almost impossible to do it right the first time
Experienced designers don’t reinvent the wheel
They use good solutions again and again
Find & use recurring patterns of classes &
Very hard to design reusable Software
Design must be specific to problem on hand
Design must be general enough to address future problems and requirements
Almost impossible to do it right the first time
Experienced designers don’t reinvent the wheel
They use good solutions again and again
Find & use recurring patterns of classes &
Very hard to design reusable Software
Design must be specific to problem on hand
Design must be general enough to address future problems and requirements
Almost impossible to do it right the first time
Experienced designers don’t reinvent the wheel
They use good solutions again and again
Find & use recurring patterns of classes &
Very hard to design reusable Software
Design must be specific to problem on hand
Design must be general enough to address future problems and requirements
Almost impossible to do it right the first time
Experienced designers don’t reinvent the wheel
They use good solutions again and again
Find & use recurring patterns of classes &
Today, our everyday life is almost impossible to detach
from the influence of wireless mobile communication
technologies. This global trend is growing exponentially, and
the mobile-only data traffic is expected to exceed stationary
data traffic. However, for further development of mobile
communication, there is a major obstacle to overcome, which
is the resource-paucity of portable devices relative to
stationary hardware.
With the advent of IMT-2000, CDMA has emerged at the focal point of
interest in wireless communications. Now it has become impossible to discuss
wireless communications without knowing the CDMA technologies. There are
a number of books readily published on the CDMA technologies, but they are
mostly dealing with the traditional spread-spectrum technologies and the IS-95
based CDMA systems. As a large number of novel and interesting technologies
have been newly developed throughout the IMT-2000 standardization process
in very recent years, new reference books are now demanding that address the
diverse spectrum of the new CDMA technologies.
Digital radios have undergone an astonishing evolution in the last century. Born as a set of simple and
power-hungry electrical and electromechanical devices for low data rate transmission of telegraph data
in the Marconi age, they have transformed, thanks to substantial advances in electronic technology,
into a set of small, reliable and sophisticated integrated devices supporting broadband multimedia
communications. This, however, would not have been possible unless significant progress had been
made in recent decades in the field of signal processing algorithms for baseband and passband signals.
In fact, the core of any modern digital radio consists of a set of algorithms running over programmable
electronic hardware. This book stems from the research and teaching activities of its co-authors in
the field of algorithmic techniques for wireless communications. A huge body of technical literature
has accumulated in the last four decades in this area, and an extensive coverage of all its important
aspects in a single textbook is impossible. For this reason, we have selected a few important topics
and, for ease of reading, organized them into two parts.
Since OpenStreetMap (OSM) appeared more than ten years ago, new
collaborative mapping approaches have emerged in different areas and have become
important components of localised information and services based on localisation.
There is now increased awareness of the importance of the space-time attributes of
almost every event and phenomenon. Citizens now have endless possibilities to
quickly geographically locate themselves with an accuracy previously thought
impossible. Based on these societal drivers, we proposed a number of collaborative
mapping experiments (“mapping parties”) to delegates of a large open-source
geospatial conference and to citizens of the conference’s host city during July 2015.
Modern information technologies and the advent of machines powered by artificial
intelligence (AI) have already strongly influenced the world of work in the 21st century.
Computers, algorithms and software simplify everyday tasks, and it is impossible
to imagine how most of our life could be managed without them. However, is it
also impossible to imagine how most process steps could be managed without
human force? The information economy characterised by exponential growth
replaces the mass production industry based on economy of scales
