Orthogonal Frequency Division Multiplexing is a modulation scheme that splits a high-rate data stream into multiple lower-rate streams transmitted simultaneously over closely spaced, overlapping subcarrier frequencies. The subcarriers are mathematically orthogonal, meaning they do not interfere with each other despite overlapping.
Heard on the job
The interference is wiping out a few subcarriers, but OFDM error correction is keeping the link stable.
Also heard as
- Orthogonal Frequency Division Multiplexing
Related terms
Frequency
The number of cycles a radio wave or alternating current completes per second.
Subcarrier
A secondary radio frequency modulated onto a main carrier wave to transmit additional data.
Baseband
The original frequency range of a transmission signal before it is modulated onto a higher-frequency carrier wave.