基于新型光源的联合分步映射空间调制可见光通信系统性能分析

doi:10.11959/j.issn.2096-3750.2017.00018

物联网学报 ›› 2017, Vol. 1 ›› Issue (2): 54-62.doi: 10.11959/j.issn.2096-3750.2017.00018

基于新型光源的联合分步映射空间调制可见光通信系统性能分析

宋健¹,曹雅丽¹,张文胜¹,孙健¹,王承祥^1,²

¹ 山东大学信息科学与工程学院山东省无线通信技术重点实验室，山东济南 250100
² 英国赫瑞瓦特大学工程与自然科学学院传感器、信号与系统研究所，爱丁堡 EH14 4AS

修回日期:2017-08-20 出版日期:2017-09-01 发布日期:2018-03-10
作者简介:宋健（1991-），男，山东大学硕士生，主要研究方向为可见光通信。|曹雅丽（1992-），女，山东大学硕士生，主要研究方向为可见光通信。|张文胜（1975-），男，山东大学副教授、硕士生导师，主要研究方向为随机矩阵理论、5G关键技术、可见光通信等。|孙健（1975-），男，山东大学讲师，主要研究方向为信道测量与建模、多载波（OFDM/FBMC）、多天线（MIMO）、软件无线电、无线通信系统实现（FPGA、USRP）、通信网络仿真等。|王承祥（1975-），男，英国赫瑞瓦特大学教授、博士生导师，主要研究方向为无线信道测量与建模、5G关键技术、可见光通信等。
基金资助:
国家自然科学基金资助项目(61371110);山东省自然科学基金资助项目(ZR2017MF012);山东省重点研发基金资助项目(2016GGX101014)

Performance analysis of a VLC system with a new light source and joint step-by-step mapping spatial modulation

Jian SONG¹,Ya-li CAO¹,Wen-sheng ZHANG¹,Jian SUN¹,Cheng-xiang WANG^1,²

¹ Shandong Provincial Key Lab of Wireless Communication Technologies,School of Information Science and Engineering,Shandong University,Jinan 250100,China
² Institute of Sensors,Signals and Systems,School of Engineering ＆Physical Sciences,Heriot-Watt University,Edinburgh EH14 4AS,UK

Revised:2017-08-20 Online:2017-09-01 Published:2018-03-10
Supported by:
The National Natural Science Foundation of China(61371110);The Natural Science Foundation of Shandong Province(ZR2017MF012);Shandong Key Research and Development Program(2016GGX101014)

摘要/Abstract

摘要：

在可见光通信（VLC）系统中采用一种新型光源来同时实现照明和数据传输功能，并提出基于空间调制和红色、绿色及蓝色（RGB）LED联合分步映射空间调制方法。该新型光源由白光LED和一组或多组RGB LED组成，其中，白光LED仅提供照明功能，RGB LED则被用来传输数据信息。在光源成色方面，通过功率分配来控制 RGB LED 的成色，并用颜色显色指数（CRI）来评价新光源的成色质量。在光源通信方面，对联合分步映射空间调制与直流偏置光正交频分复用（DCO-OFDM）在接收端的误码率性能进行了研究与验证。仿真结果显示，RGB LED 的功率可根据不同的通信和照明要求做自适应调整以适应不同场景的需求，同时在合适的灯组布局和直流偏置下，该系统可取得较好的误码率性能。

关键词: 可见光通信, 新型光源, 联合分步映射空间调制, 功率比, DCO-OFDM

Abstract:

A new type of light source in the visible light communication (VLC) system was adopted to realize the illumination and data transmission functions simultaneously.Also,a joint step-by-step mapping spatial modulation method based on spatial modulation and red,green,and blue (RGB) LED was proposed.The new light source consisted of white LED and one or more sets of RGB LED,where white LED provided only illumination and RGB LED was only used for communications.The color of RGB LED was controlled by power allocation and the color quality of the new light source was evaluated by color rendering index (CRI).Moreover,the bit error rate (BER) performance of the joint step-by-step mapping spatial modulation scheme with direct current optical orthogonal frequency division multiplexing (DCO-OFDM) at the receivers was also analysed.Simulation results show that the power of RGB LED can be adaptively adjusted according to different requirements of communication and illumination to meet the needs of different scenarios.The VLC system can achieve good BER performance with appropriate light group layout and direct current paranoia.

Key words: VLC, new light source, joint step-by-step mapping spatial modulation, power ratio, DCO-OFDM

中图分类号:

TN918.1

宋健,曹雅丽,张文胜,孙健,王承祥. 基于新型光源的联合分步映射空间调制可见光通信系统性能分析[J]. 物联网学报, 2017, 1(2): 54-62.

Jian SONG,Ya-li CAO,Wen-sheng ZHANG,Jian SUN,Cheng-xiang WANG. Performance analysis of a VLC system with a new light source and joint step-by-step mapping spatial modulation[J]. Chinese Journal on Internet of Things, 2017, 1(2): 54-62.

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映射序列	灯组1	灯组2	灯组3	灯组4
00	√	×	×	×
01	×	√	×	×
10	×	×	√	×
11	×	×	×	√

映射序列	R	G	RG	RB
00	√	×	×	×
01	×	√	×	×
10	×	×	√	×
11	×	×	×	√

基于新型光源的联合分步映射空间调制可见光通信系统性能分析

Performance analysis of a VLC system with a new light source and joint step-by-step mapping spatial modulation

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