8/16/2019 Miniproject Abstract
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ABSTRACT
Orthogonal Frequency Division Multiplexing (OFDM) is a Frequency
Division
Multiplexing (FDM) technique used as a digital multi-carrier
modulation method. A large
number o closely spaced sub carriers !hich are orthogonal are
used to carry data on
several parallel data streams. A large number o closely spaced
sub carriers !hich are
orthogonal are used to carry data on several parallel data
streams. OFDM uses the
spectrum eiciently compared to Frequency Division Multiple
Access (FDMA) by
spacing the channels much closer and creating all the carriers
orthogonal to one another.
Orthogonality o the carriers prevents intererence bet!een the
closely spaced carriers
and provides high band!idth eiciency. "his paper presents a
real time transmitter using
an Orthogonal Frequency Division Multiplexing signaling scheme.
"he transmitter is
implemented on a Field #rogrammable $ate Array (F#$A) through
%ilinx &ystem
$enerator or D and includes all the bloc's needed or the
transmission path o
OFDM. "he transmitter rame can be reconigured or dierent pilot
and data schemes.
orresponding bloc's o OFDM transmitter and receiver includes
uadrature Amplitude
Modulation (AM)* &ymbol $enerator (&$)* +ero #adding*
,nverse Fast Fourier
"ransorm (,FF")* yclic #reix* Output Module. esults sho! that a
rough
implementation o the signal path can be implemented by using
only %ilinx &ystem
$enerator or D.
$,D/D 01 &0M,""/D 01
&MA &/23A* MA4//&3A M. &.
A&&O.#OF/&&O* M5**//
// D/#" O66 4O789
