|
Showing 1 - 4 of
4 matches in All Departments
Today, wireless infrared transmission has entered our homes,
offices, industry and health care, with applications in the field
of remote control, telemetry and local communication. Low-Power
Wireless Infrared Communications is about the underlying
technology. As most equipment is battery-powered, the emphasis is
on power optimization of the infrared transmission system. System
parameters as well as environmental parameters that determine the
eventual transmission quality are identified, to facilitate
well-reasoned system design. Many design rules, based on
calculations, measurements and simulations, are presented to help
the designer push the performance close to the limits set by nature
and the available technology. Firstly, the basic transmission link
is introduced, and strategies to optimize its signal-to-noise ratio
are discussed. Lighting flicker is identified as a possible source
of interference. Then, receiver noise and bandwidth are discussed.
It is argued that noise optimization and bandwidth optimization do
not necessarily conflict. The following chapters provide the reader
with an overview of modulation and synchronization techniques.
Pulse position modulation is recognized as an attractive technique
for low-power purposes. As receiver synchronization in those
systems is a subject hardly covered by literature, an in-depth
discussion of possible synchronization subsystems is included. This
book is essential reading for researchers and designers of infrared
communication systems and those who are involved in standardization
activities (Infrared Data Association, IrDA). For those who are new
to the area, the first chapter serves as an ideal introduction.
Today, wireless infrared transmission has entered our homes,
offices, industry and health care, with applications in the field
of remote control, telemetry, and local communication. This book is
about the underlying technology. As it is an outgrowth of my Ph.D.
thesis, the emphasis is on fundamental aspects rather than
industrial aspects, like the standardization effort by the IrDA
[7]. I guess that this is not a drawback, as, eventually, the laws
of physics apply to all of us! As the applied radiation is not
necessarily in the infrared, throughout the book we usually prefer
the term optical transmission. As most equipment is
battery-powered, the emphasis is on power optimiza tion of the
optical transmission system. System parameters as well as environ
mental parameters that determine the eventual transmission quality
are iden tified, to facilitate well-reasoned system design. Many
design rules, based on calculations, measurements and simulations
are presented to help the designer push the performance close to
the limits set by nature and the available tech nology. The first
chapters introduce the subject and the present the scope of the
book. Then, the basic transmission link is introduced in chapter 3,
and strate gies to optimize its signal-to-noise ratio are
discussed. Lighting flicker is identi fied as a possible source of
interference. Then, receiver noise and bandwidth are discussed in
chapter 4, mainly based on the material presented in [66], [67],
[69].
|
You may like...
Loot
Nadine Gordimer
Paperback
(2)
R383
R318
Discovery Miles 3 180
Loot
Nadine Gordimer
Paperback
(2)
R383
R318
Discovery Miles 3 180
|