ATGP - radBIOS - Wireless Networking with Audio
Explore wireless networking using audio in this 53-minute conference talk from BSidesLV 2015. Dive into the concept of Above the Ground Plane (#radBIOS) as Richo Healey demonstrates innovative techniques for data transmission through sound. Learn about PSK31 encoding, Fourier transforms, and the challenges of audio-based networking. Discover the intricacies of data structures, graphs, and architecture involved in this unique approach. Follow along as Healey discusses unambiguous encapsulation, airgap hopping, and content-addressable DAGs. Gain insights into the failures and successes of implementing duplex communication and handshaking protocols. Conclude with a comprehensive overview of digital signal processing (DSP) and keying techniques, along with valuable resources for further exploration in this fascinating field of wireless communication.