光通信研究Issue(2)：15-18,26,5.DOI:10.13756/j.gtxyj.2017.02.005
基于CAP的可见光通信系统性能分析
Performance Analysis of Visible Light Communication System Employing Carrierless Amplitude and Phase Modulation
摘要
Abstract
In order to overcome the problem of limited bandwidth of LED devices used in a Visible Light Communication (VLC) system, a bandwidth efficiency scheme named DCO-CAP, employing Carrierless Amplitude and Phase (CAP) modulation, is proposed in this paper.In the proposed scheme, by utilizing orthogonal shaping filter bank and adding DC bias, a real and positive signal is transmitted in visible light link.Two kinds of Finite Impulse Response(FIR) of orthogonal shaping filter bank is proposed on the basis of Hilbert transform.The Bit Error Rate (BER) performance is derived for DCO-CAP system in VLC channel.The simulation results show that two types of filter bank have different capability in combating with the clipping noise jamming and identical capability in depressing channel noise jamming.It is proved that the optimal DC bias exists, which makes DCO-CAP system to obtain the best reliability performance.关键词
可见光链路/直流偏置无载波幅度相位调制/希尔伯特变换/直流偏置/误码率Key words
visible light link/DCO-CAP/Hilbert transform/DC bias/BER分类
信息技术与安全科学引用本文复制引用
崔玉,王旭东,吴楠,解丹妮..基于CAP的可见光通信系统性能分析[J].光通信研究,2017,(2):15-18,26,5.基金项目
国家自然科学基金资助项目(61371091) （61371091）
