Visible light communication based on space-division multiple access optical beamforming  

作　　者：Sung-Man Kim Hyun-Jun Lee 

机构地区：[1]Department of Electronic Engineering, Kyungsung University,Busan 608-736,South Korea

出　　处：《Chinese Optics Letters》2014年第12期9-12,共4页中国光学快报（英文版）

基　　金：supported by Kyungsung University Research Grants in 2014

摘　　要：We propose and demonstrate a visible light communication （VLC） scheme based on space-division multiple access （SDMA） optical beamforming to accommodate multiple user devices in the VLC based on optical beamforming. SDMA optical bealnforming is a technique which separates light-emitting diode light spa- tially and focuses each part on different target devices simultaneously. We show the experimental results of the VLC signal amplitudes, the optical power densities, and the bit-error rate performance as a function of transmission distance before and after the SDMA optical beamforming. The results show that the VLC signal amplitudes and optical power densities are improved by 8-2 and 3.8- 5 dB, respectively, with the help of SDMA optical beamforming.We propose and demonstrate a visible light communication （VLC） scheme based on space-division multiple access （SDMA） optical beamforming to accommodate multiple user devices in the VLC based on optical beamforming. SDMA optical bealnforming is a technique which separates light-emitting diode light spa- tially and focuses each part on different target devices simultaneously. We show the experimental results of the VLC signal amplitudes, the optical power densities, and the bit-error rate performance as a function of transmission distance before and after the SDMA optical beamforming. The results show that the VLC signal amplitudes and optical power densities are improved by 8-2 and 3.8- 5 dB, respectively, with the help of SDMA optical beamforming.

关 键 词：VLC SDMA Visible light communication based on space-division multiple access optical beamforming 

分 类 号：TN929.1[电子电信—通信与信息系统] TN929.5[电子电信—信息与通信工程]