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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Roberts, R.D. |
| Copyright Year | 2013 |
| Description | Author affiliation: Intel Labs., Intel Corp., Hillsboro, OR, USA (Roberts, R.D.) |
| Abstract | Camera communications is the use of an image sensor to receive LED modulated data. The undersampling properties of UFSOOK allows the encoding of bits at frequency shift ON-OFF keying frequencies that avoid flicker while at the same time being successfully decoded by a low frame rate camera. PWM dimming is supported via data modulation of the PWM frequency, but requires that FEC be added in the form of multi-phase sampling due to asynchronous clocking. Multiple LEDs can be modulated to send parallel data streams to the receiver enabling MIMO. This paper introduces a simple protocol that will allow the transmitter to inform the receiver how the MIMO data streams should be processed to realize the FEC and reconstruct the transmitted message. |
| Starting Page | 1052 |
| Ending Page | 1057 |
| File Size | 762129 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479928514 |
| DOI | 10.1109/GLOCOMW.2013.6825131 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-12-09 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Multiplexing camera communications Protocols UFSOOK FEC space-time coding Receivers multi-phase sampling Light emitting diodes Encoding frequency shift ON-OFF keying forward error correction VLC CamCom visible light communications Cameras MIMO image sensor communications undersampling |
| Content Type | Text |
| Resource Type | Article |
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