Severin Kaderli
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Signed-off-by: Severin Kaderli <severin@kaderli.dev>
25 lines
1.4 KiB
TeX
25 lines
1.4 KiB
TeX
\chapter{Introduction}
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In our lives we use many communication technologies that work over a short
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range: for connecting our mice and keyboards to our computers, listening to
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music wirelessly and to pay contactlessly. Those technologies include, but are
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not limited to: Bluetooth, \gls{rfid}, \gls{nfc} and many others.
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What many of those technologies have in common is that they work on top of
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radio waves that utilize electromagnetic induction. Some problems of radio
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waves are the difficulty of passing through conductive materials such as water
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or metals \cite{RadioWaves} and they are susceptible to interference
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\cite{RadioInterference} and jamming \cite{RadioJamming}. An alternative to
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those technologies would be communication over magnetic induction.
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Other research projects in this area already exist and some have covered the
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use of the magnetic fields emitted from CPUs as a communication channel
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\cite{MagneComm} and other cover the general use of magnetic induction
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communication in body area networks \cite{magneticInductionBAN}.
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This thesis researched the concept of communication using magnetic induction
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and created a prototype implementation of a protocol that works through
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attempted manipulation of magnetic fields using a CPU in a laptop called
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MagSend. A simple user interface in the form of a website is created that
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allows a user to send messages over the protocol and an Android application
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is used to receive messages using the protocol.
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