光通信研究Issue(3)：5-8,61,5.DOI:10.13756/j.gtxyj.2017.03.002
基于OFDM和Nyquist单载波调制的可见光性能比较
Performance Comparison of OFDM and Nyquist-shaped Single-Carrier in Visible Light Communication System
摘要
Abstract
This paper first reviews the fundamental principle of Visible Light Communication (VLC) system, considering the limited modulation bandwidth of VLC system.Two methods with high Spectrum Efficiency (SE) is proposed to make full use of the limited bandwidth in VLC system.The paper then introduce two modulation techniques for its realization: Orthogonal Frequency Division Multiplexing (OFDM) and Nyquist-shaped Single-Carrier (N-shaped SC) and their principles.We simulate and compare the performances of OFDM and N-shaped SC in VLC system.The Bit Error Rate (BER) performance and SE of the two systems are analyzed and compared.It is shown that both of the OFDM-based VLC and N-shaped SC-based VLC have high SE, but N-shaped SC is more robust and suitable to the implementation of the VLC system.关键词
可见光通信/正交频分复用/奈奎斯特单载波Key words
VLC/OFDM/N-shaped SC分类
信息技术与安全科学引用本文复制引用
王颖,王震,丁俊杰,吴昊,卞诗航,陈浩哲,朱祎,游善红..基于OFDM和Nyquist单载波调制的可见光性能比较[J].光通信研究,2017,(3):5-8,61,5.基金项目
区域光纤通信网与区域新型光通信系统国家重点实验室(北京大学)开放课题(2013OCTN-02) （北京大学）
光纤通信技术和网络国家重点实验室开放课题(2015OCTN-02) （2015OCTN-02）
