Poster: Inaudible High-throughput Communication Through Acoustic Signals
Published in ACM Annual International Conference on Mobile Computing and Networking (ACM MobiCom 2019), 2019
Recommended citation: Yang Bai, Jian Liu, Yingying Chen, Li Lu, Jiadi Yu. "Poster: Inaudible High-throughput Communication Through Acoustic Signals." Proceedings of ACM Annual International Conference on Mobile Computing and Networking (ACM MobiCom). Los Cabos, Mexico. pp. 79:1-79:3. 2019. doi: 10.1145/3300061.3343405.
This work received the first runner-up poster award of ACM MobiCom 2019.
This work was presented as a poster in ACM MobiCom 2019. ACM Annual International Conference on Mobile Computing and Networking is a top ranked international conference in mobile networking and computing. ACM MobiCom is also a CCF-A conference.
Abstract: In recent decades, countless efforts have been put into the research and development of short-range wireless communication, which offers a convenient way for numerous applications (e.g., mobile payments, mobile advertisement). Regarding the design of acoustic communication, throughput and inaudibility are the most vital aspects, which greatly affect available applications that can be supported and their user experience. Existing studies on acoustic communication either use audible frequency band (e.g., <20kHz) to achieve a relatively high throughput or realize inaudibility using near-ultrasonic frequency band (e.g., 18-20kHz) which however can only achieve limited throughput. Leveraging the non-linearity of microphones, voice commands can be demodulated from the ultrasound signals, and further recognized by the speech recognition systems. In this poster, we design an acoustic communication system, which achieves high-throughput and inaudibility at the same time, and the highest throughput we achieve is over 17× higher than the state-of-the-art acoustic communication systems.