Acoustic communication between two PC

Goal

In this tutorial you will learn:

how to transfer information by OOK modulation
how to transfer information by BPSK modulation
how to transfer information by QPSK modulation
how to realise equalizer
how to work with ofdm transmitter/receiver and cycle prefix(CP)

Theory

Offered algorithm allows acoustic communication between two PC

Result

Below result is reached with BER = 0 for OOK and BPSK modulation. Physical layer gross bitrate = 1600 [bits/s] Net bitrate = 1327 [bits/s]