Howtosignalprocessing
- Which modulation technique is used in OFDM?
- What are the limitations of OFDM?
- Why OFDM use was not popular in the initial period?
Which modulation technique is used in OFDM?
Orthogonal Frequency Division Multiplexing (OFDM) is another widely used modulation method used to achieve high data rates and spectral efficiency. It is known as a multicarrier modulation method as many carriers are used instead of just one.
What are the limitations of OFDM?
The main drawbacks of OFDM are its high peak to average power ratio and its sensitivity to phase noise and frequency offset.
Why OFDM use was not popular in the initial period?
Initially the use of OFDM required large levels of processing and accordingly it was not viable for general use. Some of the first systems to adopt OFDM were digital broadcasting - here OFDM was able to provide a highly reliable form of data transport over a variety of signal path conditions.
