Modeling of Multipath Channel and Performance Analysis of MIMO-DCO-OFDM System in Visible Light Communications

被引：11
|
作者：
Jia Kejun [1 ,2 ]
Hao Li [1 ]
机构：
[1] Southwest Jiaotong Univ, Key Lab Informat Coding & Transmiss, Chengdu 610031, Sichuan, Peoples R China
[2] Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou 730050, Gansu, Peoples R China
来源：
CHINESE JOURNAL OF ELECTRONICS | 2019年 / 28卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Visible light communication (VLC); Multiple input multiple output (MIMO); DC-biased optical OFDM; Multipath channel model; Clipping noise; OPTICAL WIRELESS COMMUNICATIONS; IMPULSE-RESPONSE; MODULATION;
D O I：
10.1049/cje.2019.03.010
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
When a big path difference exists between the multiple transmitter-receiver links, time dispersion is inevitable. A multipath channel model is proposed for Multiple-input multiple-output (MIMO) Visible light communications (VLC). To combat Inter-symbol interference (ISI) as well as increase the channel capacity, a combination of MIMO and Direct-current-biased Optical orthogonal frequency division multiplexing (DCO-OFDM) is studied. The performance analysis of MIMO-DCO-OFDM taking into account the limitation of the forward current of the off-the-shelf LED is derived. The accuracy of the theoretical results is verified by comparison with the Monte Carlo Bit error ratio (BER) simulation results under different DC bias and different clipping levels.
引用
收藏
页码：630 / 639
页数：10
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