Poster: Styrofoam - A tightly packed coding scheme for camera-based visible light communication

David Ramirez, Robert LiKamWa, Jason Holloway

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Screen-to-camera visible-light communication links are fundamentally limited by inter-symbol interference, in which the camera receives multiple overlapping symbols in a single capture exposure. By determining interference constraints, we are able to decode symbols with multi-bit depth across all three color channels. We present Styrofoam, a coding scheme which optimally satisfies the constraints by inserting blank frames into the transmission pattern. The coding scheme improves upon the state-of-the-art in camera-based visiblelight communication by: (1) ensuring a decode with at least halfexposure of colored multi-bit symbols, (2) limiting decode latency to two transmission frames, and (3) transmitting 0.4 bytes per grid block at the slowest camera's frame rate. In doing so, we outperform peer unsynchronized VLC transmission schemes by 2:9x. Our implementation on smartphone displays and cameras achieves 69:1 kbps. Copyright

Original languageEnglish (US)
Title of host publicationMobiCom 2014 - Proceedings of the 20th Annual
PublisherAssociation for Computing Machinery
Pages405-407
Number of pages3
ISBN (Electronic)9781450327831
DOIs
StatePublished - Sep 7 2014
Externally publishedYes
Event20th ACM Annual International Conference on Mobile Computing and Networking, MobiCom 2014 - Maui, United States
Duration: Sep 7 2014Sep 11 2014

Other

Other20th ACM Annual International Conference on Mobile Computing and Networking, MobiCom 2014
CountryUnited States
CityMaui
Period9/7/149/11/14

Fingerprint

Cameras
Smartphones
Telecommunication links
Display devices
Visible light communication
Color
Communication

Keywords

  • Camera synchronization
  • Mobile systems
  • Visible light communications

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

Cite this

Ramirez, D., LiKamWa, R., & Holloway, J. (2014). Poster: Styrofoam - A tightly packed coding scheme for camera-based visible light communication. In MobiCom 2014 - Proceedings of the 20th Annual (pp. 405-407). Association for Computing Machinery. https://doi.org/10.1145/2639108.2642901

Poster : Styrofoam - A tightly packed coding scheme for camera-based visible light communication. / Ramirez, David; LiKamWa, Robert; Holloway, Jason.

MobiCom 2014 - Proceedings of the 20th Annual. Association for Computing Machinery, 2014. p. 405-407.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ramirez, D, LiKamWa, R & Holloway, J 2014, Poster: Styrofoam - A tightly packed coding scheme for camera-based visible light communication. in MobiCom 2014 - Proceedings of the 20th Annual. Association for Computing Machinery, pp. 405-407, 20th ACM Annual International Conference on Mobile Computing and Networking, MobiCom 2014, Maui, United States, 9/7/14. https://doi.org/10.1145/2639108.2642901
Ramirez D, LiKamWa R, Holloway J. Poster: Styrofoam - A tightly packed coding scheme for camera-based visible light communication. In MobiCom 2014 - Proceedings of the 20th Annual. Association for Computing Machinery. 2014. p. 405-407 https://doi.org/10.1145/2639108.2642901
Ramirez, David ; LiKamWa, Robert ; Holloway, Jason. / Poster : Styrofoam - A tightly packed coding scheme for camera-based visible light communication. MobiCom 2014 - Proceedings of the 20th Annual. Association for Computing Machinery, 2014. pp. 405-407
@inproceedings{85dd6e30ba2845e4a88cabdd0708f61b,
title = "Poster: Styrofoam - A tightly packed coding scheme for camera-based visible light communication",
abstract = "Screen-to-camera visible-light communication links are fundamentally limited by inter-symbol interference, in which the camera receives multiple overlapping symbols in a single capture exposure. By determining interference constraints, we are able to decode symbols with multi-bit depth across all three color channels. We present Styrofoam, a coding scheme which optimally satisfies the constraints by inserting blank frames into the transmission pattern. The coding scheme improves upon the state-of-the-art in camera-based visiblelight communication by: (1) ensuring a decode with at least halfexposure of colored multi-bit symbols, (2) limiting decode latency to two transmission frames, and (3) transmitting 0.4 bytes per grid block at the slowest camera's frame rate. In doing so, we outperform peer unsynchronized VLC transmission schemes by 2:9x. Our implementation on smartphone displays and cameras achieves 69:1 kbps. Copyright",
keywords = "Camera synchronization, Mobile systems, Visible light communications",
author = "David Ramirez and Robert LiKamWa and Jason Holloway",
year = "2014",
month = "9",
day = "7",
doi = "10.1145/2639108.2642901",
language = "English (US)",
pages = "405--407",
booktitle = "MobiCom 2014 - Proceedings of the 20th Annual",
publisher = "Association for Computing Machinery",

}

TY - GEN

T1 - Poster

T2 - Styrofoam - A tightly packed coding scheme for camera-based visible light communication

AU - Ramirez, David

AU - LiKamWa, Robert

AU - Holloway, Jason

PY - 2014/9/7

Y1 - 2014/9/7

N2 - Screen-to-camera visible-light communication links are fundamentally limited by inter-symbol interference, in which the camera receives multiple overlapping symbols in a single capture exposure. By determining interference constraints, we are able to decode symbols with multi-bit depth across all three color channels. We present Styrofoam, a coding scheme which optimally satisfies the constraints by inserting blank frames into the transmission pattern. The coding scheme improves upon the state-of-the-art in camera-based visiblelight communication by: (1) ensuring a decode with at least halfexposure of colored multi-bit symbols, (2) limiting decode latency to two transmission frames, and (3) transmitting 0.4 bytes per grid block at the slowest camera's frame rate. In doing so, we outperform peer unsynchronized VLC transmission schemes by 2:9x. Our implementation on smartphone displays and cameras achieves 69:1 kbps. Copyright

AB - Screen-to-camera visible-light communication links are fundamentally limited by inter-symbol interference, in which the camera receives multiple overlapping symbols in a single capture exposure. By determining interference constraints, we are able to decode symbols with multi-bit depth across all three color channels. We present Styrofoam, a coding scheme which optimally satisfies the constraints by inserting blank frames into the transmission pattern. The coding scheme improves upon the state-of-the-art in camera-based visiblelight communication by: (1) ensuring a decode with at least halfexposure of colored multi-bit symbols, (2) limiting decode latency to two transmission frames, and (3) transmitting 0.4 bytes per grid block at the slowest camera's frame rate. In doing so, we outperform peer unsynchronized VLC transmission schemes by 2:9x. Our implementation on smartphone displays and cameras achieves 69:1 kbps. Copyright

KW - Camera synchronization

KW - Mobile systems

KW - Visible light communications

UR - http://www.scopus.com/inward/record.url?scp=84907811869&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84907811869&partnerID=8YFLogxK

U2 - 10.1145/2639108.2642901

DO - 10.1145/2639108.2642901

M3 - Conference contribution

AN - SCOPUS:84907811869

SP - 405

EP - 407

BT - MobiCom 2014 - Proceedings of the 20th Annual

PB - Association for Computing Machinery

ER -