Howtosignalprocessing
Each OFDM channel consists of 128 to 2048 sub-carriers and can occupy bandwidths from 1.25 MHz to 20 MHz.
- How does OFDM save bandwidth?
- What is OFDM transmitter?
- Is OFDM wideband?
- How does an OFDM transmitter work?
How does OFDM save bandwidth?
In OFDM, several bits can be sent in parallel, or at the same time, in separate substream channels. This enables each substream's data rate to be lower than would be required by a single stream of similar bandwidth. This makes the system less susceptible to interference and enables more efficient data bandwidth.
What is OFDM transmitter?
In telecommunications, orthogonal frequency-division multiplexing (OFDM) is a type of digital transmission and a method of encoding digital data on multiple carrier frequencies.
Is OFDM wideband?
Wideband OFDM is a transmission scheme that is the basis of the IEEE standard 802.11a, which is the foundation of the proposed IEEE standard 802.16. It is a patented technology in the United States under patent number 5,282,222 and in Canada under patent number 2,064,975.
How does an OFDM transmitter work?
An OFDM signal consists of a number of closely spaced modulated carriers. When modulation of any form – voice, data, etc. is applied to a carrier, then sidebands spread out either side. It is necessary for a receiver to be able to receive the whole signal to be able to successfully demodulate the data.
