Near-ultrasound communication for TV's 2nd screen services
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ka, S. | - |
dc.contributor.author | Kim, T.H. | - |
dc.contributor.author | Ha, J.Y. | - |
dc.contributor.author | Lim, S.H. | - |
dc.contributor.author | Shin, S.C. | - |
dc.contributor.author | Choi, J.W. | - |
dc.contributor.author | Kwak, C. | - |
dc.contributor.author | Choi, S. | - |
dc.date.accessioned | 2021-08-17T04:30:04Z | - |
dc.date.available | 2021-08-17T04:30:04Z | - |
dc.date.created | 2021-08-17 | - |
dc.date.issued | 2016-10-03 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/123231 | - |
dc.description.abstract | In this paper, we propose a near-ultrasound chirp signal- based communication for the TV's 2nd screen services. While near-ultrasound (with under 20 kHz frequency) communi- cation has been developed for various applications recently, none of the previous work provides a perfect solution for 2nd screen services between TVs and smart devices. This is due mainly to the following real world challenges. The embed- ded signal in TV contents should be successfully received in a typical TV-watching environment by (i) delivering informa- tion at least at 15 bps with significantly low volume to avoid human perception, (ii) despite the presence of ambient noise, e.g., a tick, a snap, or a knock. To fulfill (i), we design chirp quaternary orthogonal keying (QOK) symbols. Especially, we aim to minimize inter-symbol interference (ISI) effects by symbol design in order to completely eliminate guard inter- vals. To resolve (ii), we propose the novel J-shape detection algorithms for both frame synchronization and carrier sens- ing. The proposed modem achieves almost zero frame error rate on a smartphone 2.7 m away from the TV even with minimal receive sound pressure level of 35 dBSPL, i.e., the noise level in a very quiet room. Moreover, throughout ex- periments and log analysis of 2nd screen service deployed in a nation-wide TV broadcasting system, J-shape detection al- gorithms are proven to achieve highly resilient performance for both frame synchronization and carrier sensing compared to previous schemes. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Association for Computing Machinery | - |
dc.title | Near-ultrasound communication for TV's 2nd screen services | - |
dc.type | Conference | - |
dc.contributor.affiliatedAuthor | Choi, J.W. | - |
dc.identifier.scopusid | 2-s2.0-84994140710 | - |
dc.identifier.bibliographicCitation | 22nd Annual International Conference on Mobile Computing and Networking, MobiCom 2016, pp.42 - 54 | - |
dc.relation.isPartOf | 22nd Annual International Conference on Mobile Computing and Networking, MobiCom 2016 | - |
dc.relation.isPartOf | MobiCom '16: Proceedings of the 22nd Annual International Conference on Mobile Computing and Networking | - |
dc.citation.title | 22nd Annual International Conference on Mobile Computing and Networking, MobiCom 2016 | - |
dc.citation.startPage | 42 | - |
dc.citation.endPage | 54 | - |
dc.citation.conferencePlace | US | - |
dc.citation.conferencePlace | Graduate Center, CUNY | - |
dc.citation.conferenceDate | 2016-10-03 | - |
dc.type.rims | CONF | - |
dc.description.journalClass | 1 | - |
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