Communication Over an Acoustic Channel Using Data Hiding Techniques
IEEE Transactions on Multimedia
Multiple-Antenna Cooperative Wireless Systems: A Diversity–Multiplexing Tradeoff Perspective
IEEE Transactions on Information Theory
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There are many uses for a reliable communication channel from an event (at entertainment or show environments like cinemas, theaters and sport stadiums) towards the mobile phones of the audience. Such a channel enables new mobile applications that should interest the SIGGRAPH Mobile community: For example, events in a movie can trigger assisting information to appear on a phone's display ("second screen"). or games involving the phones and the event are enabled through synchronous message transmissions. Real time information about an event can enrich the story telling when augmented-reality is applied. We report on a prototype system that operates only with the audio channel and the existing audio infrastructure. The system does not require any dedicated wireless (radio) infrastructure such as Wi-Fi access points to be set-up in the environment. This setup maps nicely to many event environments: Avoiding the need for a new wireless infrastructure, a movie (or a show, concert, etc.) can directly interact with mobile phones in virtually any location across the world.