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http://dx.doi.org/10.3807/JOSK.2016.20.2.276

2 Gbit/s VLC Scheme Using Time-Frequency Color-Clustered MIMO Based on BCYR LEDs  

Han, Phyu Phyu (Department of Information and Communication, Pukyong National University)
Sewaiwar, Atul (Department of Information and Communication, Pukyong National University)
Chung, Yeon-Ho (Department of Information and Communication, Pukyong National University)
Publication Information
Journal of the Optical Society of Korea / v.20, no.2, 2016 , pp. 276-282 More about this Journal
Abstract
A 2 Gbit/s visible-light communication (VLC) scheme using time-frequency color-clustered (TFCC) multiple-input multiple-output (MIMO) based on blue, cyan, yellow, and red (BCYR) light-emitting diodes (LEDs) is presented. In the proposed scheme, BCYR LEDs are employed to form four different color clusters. Data transmission using the four color clusters is performed in MIMO, so that the scheme achieves a very high speed of data transmission. Moreover, the scheme employs the TFCC strategy to yield high performance in terms of bit error rate (BER). TFCC operates in such a way that the original data and the two delayed versions of the data are multiplied by orthogonal frequencies and then transmitted using a specific color of the BCYR LED. In the receiver, color filters are employed to detect the data transmitted from the desired cluster. Selection combining (SC) is also performed to yield a diversity effect within each color cluster, to further improve the performance. Performance evaluation demonstrates that the proposed TFCC MIMO VLC offers a data rate of 2 Gbit/s and a bit error rate of 4×10-5, at an Eb/No value of merely 3 dB.
Keywords
Light emitting diodes; Optical MIMO; Color cluster; Time-frequency diversity;
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Times Cited By KSCI : 2  (Citation Analysis)
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