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dc.contributor.authorChen, Shih-Haoen_US
dc.contributor.authorChow, Chi-Waien_US
dc.date.accessioned2018-08-21T05:56:41Z-
dc.date.available2018-08-21T05:56:41Z-
dc.date.issued2014-01-01en_US
dc.identifier.issn2330-7986en_US
dc.identifier.urihttp://hdl.handle.net/11536/146509-
dc.description.abstractMultiple-input and multiple-output (MIMO) scheme can extend the transmission capacity for the light-emitting-diode (LED) visible light communication (VLC) system. The MIMO VLC system using the popular mobile-phone camera as the optical receiver (Rx) to receive MIMO signal from n x n Red-Green-Blue (RGB) LED array is desirable. The key step of decoding the received RGB LED array signals is detecting the direction of received array signals. If the LED transmitter (Tx) is rotated, the signal may not be received correctly and cause an error in the received signal. In this work, we propose and demonstrate a novel hierarchical transmission scheme which can reduce the computation complexity of rotation detection in LED array VLC system. We use the n x n RGB LED array as the MIMO Tx. A novel two dimension Hadamard coding scheme is proposed and demonstrated. The detection correction rate is above 95% in the indoor usage distance. Experimental results confirm the feasibility of the proposed scheme.en_US
dc.language.isoen_USen_US
dc.subjectVisible Light Communication (VLC)en_US
dc.subjectMultiple-input and multiple-output (MIMO)en_US
dc.titleHIERARCHICAL SCHEME FOR DETECTION OF ROTATING MIMO VISIBLE LIGHT COMMUNICATION SYSTEMS USING MOBILE-PHONE CAMERAen_US
dc.typeProceedings Paperen_US
dc.identifier.journal2014 13TH INTERNATIONAL CONFERENCE ON OPTICAL COMMUNICATIONS AND NETWORKS (ICOCN)en_US
dc.contributor.department光電工程學系zh_TW
dc.contributor.departmentDepartment of Photonicsen_US
dc.identifier.wosnumberWOS:000399473500064en_US
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