This document discusses FDMA (Frequency Division Multiple Access), a method of multiple access where a given radio frequency bandwidth is divided into smaller frequency bands. Each user is allocated a unique frequency band or channel. The key advantages of FDMA are that it does not require base station control, data transmission will not be lost, and it has simple channel operations. However, disadvantages include the inability of stations to receive from multiple sources, fixed and small data rates per channel, and wasted capacity from guard bands.

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.