Telephone based applications uses Pulse coded moulation
signals which further uses time division multiplexing for
the efficient use of channel bandwidth.
actually TDMA is the technology which is being used by
telecommunication companies to make communication b/n mobile
users ,with GSM
in it a time slot is allocated to user in particular cell;
make before break switching mostly used in TDMA when a user
enters in new cell
TDMA disadvantage is that a user cannot continue its call
when he is entering in new cell and its all time slots are full.
time divison multeplexing (TDM) is mainly used in
communications .in order to transmmit msg of different
users in the same channel , we use to send this
simultaneously .
friends,
in closed loop system bandwidth is encresed comparision to
open loop. what is mean by that?
generally bandwidth means something realeted to frequency.
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