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首页> 外文期刊>International journal of electronics >Performance analysis of visible light communication using the STBC-OFDM technique for intelligent transportation systems
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Performance analysis of visible light communication using the STBC-OFDM technique for intelligent transportation systems

机译：使用STBC-OFDM技术在智能交通系统中进行可见光通信的性能分析

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摘要

Visible light communication (VLC) applied in an intelligent transportation system (ITS) has attracted growing attentions, but it also faces challenges, for example deep path loss and optical multi-path dispersion. In this work, we modelled an actual outdoor optical channel as a Rician channel and further proposed space-time block coding (STBC) orthogonal frequency-division multiplexing (OFDM) technology to reduce the influence of severe optical multi-path dispersion associated with such a mock channel for achieving the effective BER of 10~(-6) even at a low signal-to-noise ratio (SNR). In this case, the optical signals transmission distance can be extended as long as possible. Through the simulation results of STBC-OFDM and single-input-single-output (SISO) counterparts in bit error rate (BER) performance comparison, we can distinctly observe that the VLC-ITS system using STBC-OFDM technique can obtain a strongly improved BER performance due to multi-path dispersion alleviation.
机译：应用于智能交通系统（ITS）的可见光通信（VLC）引起了越来越多的关注，但是它也面临着挑战，例如深路径损耗和光学多路径色散。在这项工作中，我们将实际的室外光信道建模为Rician信道，并进一步提出了空时分组编码（STBC）正交频分复用（OFDM）技术，以减少与此类相关的严重光多径色散的影响。模拟通道，即使在低信噪比（SNR）时也可实现10〜（-6）的有效BER。在这种情况下，可以延长光信号的传输距离。通过对STBC-OFDM和单输入单输出（SISO）对应物的误码率（BER）性能比较的仿真结果，我们可以清楚地观察到，使用STBC-OFDM技术的VLC-ITS系统可以获得强大的改进。 BER性能归因于多径色散的减轻。

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  • 来源
    《International journal of electronics》 |2014年第9期|1117-1133|共17页
  • 作者

    Changping Li; Ying Yi; Kyujin Lee; Kyesan Lee;

  • 作者单位

    Department of Electronics and Radio Engineering, Kyung Hee University, Suwon, Korea;

    Department of Electronics and Radio Engineering, Kyung Hee University, Suwon, Korea;

    Department of Electronics and Radio Engineering, Kyung Hee University, Suwon, Korea;

    Department of Electronics and Radio Engineering, Kyung Hee University, Suwon, Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    STBC-OFDM; optical multi-path dispersion; VLC; Rician channel;

    机译：STBC-OFDM;光学多径色散;VLC;里西亚频道;

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