Optimized 481 Mb/s visible light communication system using phosphorescent white LED  

作　　者：余冰雁 张洪明 董昊 

机构地区：[1]State Key Laboratory on Integrated Optoelectronics, Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University

出　　处：《Chinese Optics Letters》2014年第11期31-34,共4页中国光学快报（英文版）

基　　金：supported by the National Key Basic Research Program of China(No.2013CB329201);the National High Technology Research and Development Program of China(No.2013AA013601)

摘　　要：We demonstrate a visible light communication system based on DC-biased optical orthogonal frequency-division multiplexing（DCO-OFDM） and achieve a bit rate of 481 Mb/s at a communication distance of 65 cm by employing single 1 W commercial phosphorescent light-emitting diode（LED）. The average bit error rate of the received data is 2.3×10-3, which is below the forward error correction limit, 3.8×10-3. The effect of signal clipping in DCO-OFDM system is studied and resource allocation algorithms are utilized. At least 13% capacity improvement can be obtained by suitable signal clipping and resource allocation.We demonstrate a visible light communication system based on DC-biased optical orthogonal frequency-division multiplexing（DCO-OFDM） and achieve a bit rate of 481 Mb/s at a communication distance of 65 cm by employing single 1 W commercial phosphorescent light-emitting diode（LED）. The average bit error rate of the received data is 2.3×10-3, which is below the forward error correction limit, 3.8×10-3. The effect of signal clipping in DCO-OFDM system is studied and resource allocation algorithms are utilized. At least 13% capacity improvement can be obtained by suitable signal clipping and resource allocation.

关 键 词：Bit error rate Error correction Light Light emission Optical communication Orthogonal frequency division multiplexing PHOSPHORESCENCE Resource allocation 

分 类 号：TN929.1[电子电信—通信与信息系统] TN312.8[电子电信—信息与通信工程]