Successive Interference Cancellation in Practical Indoor Interfered Visible Light Communication

DING Jun-jie; BIAN Shi-hang; CHEN Hao-zhe; WU Hao; WANG Zhen; WANG Ying; YOU Shan-hong

doi:10.13756/j.gtxyj.2017.04.007

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Successive Interference Cancellation in Practical Indoor Interfered Visible Light Communication

- Successive Interference Cancellation in Practical Indoor Interfered Visible Light Communication
- Study on Optical communication Issue 4, Pages: 22-25(2017)
- 作者机构：
  
  苏州大学电子信息学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2017.04.007
  CLC： TN929.1
- Published：2017，
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[1]丁俊杰,卞诗航,陈浩哲,吴昊,王震,王颖,游善红.实用室内可见光通信连续干扰的消除[J].光通信研究,2017(04):22-25.

DING Jun-jie, BIAN Shi-hang, CHEN Hao-zhe, et al. Successive Interference Cancellation in Practical Indoor Interfered Visible Light Communication. [J]. (4):22-25(2017)
[1]丁俊杰,卞诗航,陈浩哲,吴昊,王震,王颖,游善红.实用室内可见光通信连续干扰的消除[J].光通信研究,2017(04):22-25. DOI： 10.13756/j.gtxyj.2017.04.007.

DING Jun-jie, BIAN Shi-hang, CHEN Hao-zhe, et al. Successive Interference Cancellation in Practical Indoor Interfered Visible Light Communication. [J]. (4):22-25(2017) DOI： 10.13756/j.gtxyj.2017.04.007.

摘要

针对发光二极管之间的多径干扰

提出了采用QR分解的信道均衡算法消除干扰的方案。首先建立基于离散傅里叶变换扩频的正交频分复用技术的电力线与可见光融合通信系统

并考虑了由两个发光二极管之间的电线差所引发的多径干扰

然后比较了该系统下采用QR分解的信道均衡算法和传统信道均衡算法下的误码性能。结果表明

采用QR分解的信道均衡算法可消除由发光二极管之间的电线差引起的多径干扰

从而提高系统的传输性能。

Abstract

In terms of multipath interference induced by power line among Light Emitting Diodes（LED）

we introduce DFT-S OFDM with QR-CE to achieve successive interference cancellation.We first introduce a hybrid Power Line Communication（PLC）& Visible Light Communication（VLC）system based on Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing（DFT-S OFDM）

considering the multipath interference induced by electrical lines between two LED.Then we compare the BER performance of QR decomposition based Channel Equalizer（QR-CE）with that of Conventional Channel Equalizer（CCE）in this system.It is shown that DFT-S OFDM with QR-CE can achieve successive interference cancellation in hybrid PLC & VLC system with multipath interference among LED.The simulation result shows that the performance of QRCE is much better than that of CCE.

关键词

自由空间光通信发光二极管电力线通信信道均衡

Keywords

free space optical communicationlight emitting diodepower line communicationchannel equalizer

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College of Electronic Information and Optical Engineering,Nankai University

School of Precision Instrument and Optoelectronics Engineering,Tianjin University

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