Junho Hwang

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Visible light communication (VLC) is expected to be the next generation of indoor wireless communication. A VLC system uses many LED chips, and its performance is greatly affected by the direction of light-emitting diodes (LEDs). Normally, the LEDs are directed vertically downward to the floor. In this paper, we introduce an LED layout scheme in which the(More)
To address the burst loss problem in OBS network, we propose a new optical burst control algorithm, which estimates the future burst traffic condition to eliminate the effect of congestion reaction delay. Through the simulations, we verify that the proposed algorithm outper-forms other existing burst control algorithms. 1 Problem statement In optical burst(More)
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