Ofdm

Ofdm for dummies

Ofdm for dummies
  1. What is OFDM in simple terms?
  2. What is the basic fundamental principle of OFDM system?
  3. What is OFDM & its purpose?
  4. What is the main disadvantage of OFDM?

What is OFDM in simple terms?

What is orthogonal frequency-division multiplexing (OFDM)? Orthogonal frequency-division multiplexing is a method of data transmission where a single information stream is split among several closely spaced narrowband subchannel frequencies instead of a single Wideband channel frequency.

What is the basic fundamental principle of OFDM system?

The OFDM concept is based on spreading the high speed data to be transmitted over a large number of low rate carriers. The carriers are orthogonal to each other and frequency spacing between them are created by using the fast Fourier transform (FFT).

What is OFDM & its purpose?

OFDM: Orthogonal Frequency Division Multiplexing, is a form of signal modulation that divides a high data rate modulating stream placing them onto many slowly modulated narrowband close-spaced subcarriers, and in this way is less sensitive to frequency selective fading.

What is the main disadvantage of OFDM?

The main drawbacks of OFDM are its high peak to average power ratio and its sensitivity to phase noise and frequency offset.

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