Name
Abstract | ||
|---|---|---|
Dual-channel screen-camera communication has been proposed to enable simultaneous screen viewing and hidden screen-camera communication. However, it strictly requires a well-controlled camera-screen alignment and an obstacle-free access. In this paper, we propose Dolphin, a novel real-time acoustics-based dual-channel communication system. Leveraging masking effects of human auditory system and readily available audio signals, Dolphin enables real-time unobtrusive speaker-microphone data communication without affecting the primary audio-hearing experience of human users. Compared with screen-camera communication, Dolphin supports non-line-of-sight transmissions and more flexible speaker-microphone alignments. Dolphin can also automatically adapt the data rate to various channel conditions. We further develop a secure data broadcasting scheme on Dolphin, where only designated privileged users can recover the embedded information in the acoustic signals. Our Dolphin prototype, built using COTS (Commercial Off-The-Shelf) smartphones, realizes (potentially secure) real-time hidden information communication, supports up to 8-meter signal capture distance and
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listening angle, and achieves an average goodput of 240 bps at 2 m. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1109/TMC.2018.2842771 | IEEE Trans. Mob. Comput. |
Keywords | Field | DocType |
Dolphins,OFDM,Smart phones,Acoustics,Real-time systems,Microphones,Receivers | Audio signal,Broadcasting,Masking (art),Computer science,Computer network,Communications system,Communication channel,Active listening,Real-time computing,Goodput,Orthogonal frequency-division multiplexing | Journal |
Volume | Issue | ISSN |
18 | 3 | 1536-1233 |
Citations | PageRank | References |
3 | 0.40 | 0 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Man Zhou | 1 | 12 | 3.32 |
| Qian Wang | 2 | 3091 | 152.46 |
| Kui Ren | 3 | 7927 | 355.27 |
| Dimitrios Koutsonikolas | 4 | 746 | 53.88 |
| lu su | 5 | 1118 | 66.61 |
| Yanjiao Chen | 6 | 308 | 29.22 |