OFDM - Orthogonal Frequency Division Multiplexing

OFDM is a multi carrier transmission technique capable of supporting high speed services whilst still being bandwidth efficient. It achieves this by forcing multiple sub-carriers together thereby reducing the bandwidth required when compared to more traditional FDM (Frequency Division Multiplexing)methods. However, to ensure these adjacent sub-carriers do not cause excessive interference, they must be orthogonal or 90 degrees to one another.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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