Audio Ofdm

matlab - Implementing OFDM with audio signals - Signal ...

https://dsp.stackexchange.com/questions/42861/implementing-ofdm-with-audio-signals

I've read an interesting paper called FingerIO that transmits audio waves in OFDM, and I wanted to implement and generate sounds using MATLAB. (I am quite new to signal processing, so please understand my lack of background knowledge!) In OFDM, there are 64 subcarriers, each with their own frequency band and holding a symbol.

OFDM as a modulation technique for wireless communications ...

http://skydsp.com/publications/4thyrthesis/audio/audio.htm

OFDM Setup Original Sound Transmission (Music by the Corrs) OFDM Noise Tolerance The small sound clip was used as the data source for the OFDM transmission. The wavefile was transfered across the simulated link as channel noise was varied. This shows effect of the channel noise of the data being transfered. QPSK Noise Tolerance

Design of a High Data Rate Audio Band OFDM Modem

https://web.wpi.edu/Pubs/ETD/Available/etd-041806-174713/unrestricted/navalekar.pdf

The OFDM technique used to generate the audio band signal from data bits ensures maximum bandwidth efficiency. The developed modem is capable of communicating over Ethernet connection. It uses a RJ 45 interface to connect to a data source. It is also capable of supporting a host of radio interfaces.

Embedding data in an audio signal, using power controlled ...

http://www.ijsrd.com/articles/IJSRDV2I1238.pdf

Thanks to the acoustic OFDM technology, the information can be embedded in audio and then transmitted so that the receiver can obtain the required information through certain demodulation mechanisms without severely affecting the audio quality.

What is orthogonal frequency-division multiplexing (OFDM)?

https://www.techtarget.com/searchnetworking/definition/orthogonal-frequency-division-multiplexing