Communication Engineering-II By-USTC;FSET Student

1. FDMA(frequency Division Multiple access)
Submitted By
Ananda Mohan Shil
Roll no:15010324
Dept.: EEE
Submitted To
Chitra Biswas
Lecturer, ETE, FSET
USTC.

2. Multiple Access
 When more than one user has access
to one or more radio channels within a
communication channel is called
multiple access
 Three types of multiple access most
commonly used. They are
1 • FDMA
2 • TDMA
3 • CDMA

3. FDMA
 It’s a method of multiple accessing
where a given Radio Frequency
bandwidth is divided into smaller
frequency band.
 Each user is allocated a unique
frequency band or channel.

4. Advantage of FDMA
 FDMA technique doesn't need any base-control station.
 Data that transferred between each station to another during the transmission
process will not be lost.
 There is no need for network timing.
 The channel operations in FDMA are simple.
 It is very simple to implement with respect to hardware resources.

5. Disadvantage of FDMA
 In the FDMA, it is impossible for the stations to receive data from more than one
transmission source.
 The maximum flow rate per channel is fixed and small.
 Guard bands lead to a waste of capacity.

6. Thanks to everybody.