CS485 Sylabus
Frequency Division Multiplexing
Sharing a channel by "space": Frequency Division Multiplexing
Frequency
Division multiplexing
:
The
range (space) of frequencies
is
divided
among the
users
Fact
from
Physiscs
:
The
signals
sent using
different
frequency ranges
do
not
interfere
with each other
Example:
Radio
Transmissions on
FM 98.5
do
not
interfere
with transmissions on
FM 94.1
....
Problem with
Frequency
Division Multiplexing
Problem:
Users
that use
different
frequencies
to
transmit
can
not
receive
each others
' transmissions
!!!
Result:
Freq. Div. Multiplexing
is
not
used in
computer communication
!!!
Note:
Frequency
division multiplexing
is
mainly
used in
radio
or
walkie-talkie
communication....