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|Title:||Performance of a novel LED lamp arrangement to reduce SNR fluctuation for multi-user visible light communication systems|
|Source:||Wang, Z., Yu, C., Zhong, W.-D., Chen, J., Chen, W. (2012-02-13). Performance of a novel LED lamp arrangement to reduce SNR fluctuation for multi-user visible light communication systems. Optics Express 20 (4) : 4564-4573. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.20.004564|
|Abstract:||This paper investigates the performance of our recently proposed LED lamp arrangement to reduce the SNR fluctuation from different locations in the room for multi-user visible light communications. The LED lamp arrangement consists of 4 LED lamps positioned in the corners and 12 LED lamps spread evenly on a circle. Our studies show that the SNR fluctuation under such a LED lamp arrangement is reduced from 14.5 dB to 0.9 dB, which guarantees that users can obtain almost identical communication quality, regardless of their locations. After time domain zero-forcing (ZF) equalization, the BER performances and channel capacities of 100-Mbit/s and 200-Mbit/s bipolar on-off-keying (OOK) signal with most significant inter-symbol interference (ISI) are very close to that of the channel without any ISI caused by this LED lamp arrangement. © 2012 Optical Society of America.|
|Source Title:||Optics Express|
|Appears in Collections:||Staff Publications|
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