A linear receiver for visible light communication systems with phase modulated OFDM

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• 作者：Gui-Teng Xie ; ^{xieguiteng@outlook.com" class="auth_mail" title="E-mail the corresponding author} ; Hong-Yi Yu ^{maxyucn@163.com" class="auth_mail" title="E-mail the corresponding author} ; Yi-Jun Zhu ^{yijunzhu1976@outlook.com" class="auth_mail" title="E-mail the corresponding author} ; Xin-Sheng Ji ^{jxs@ndsc.com.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Visible light communication (VLC) ; Orthogonal frequency-division multiplexing (OFDM) ; Phase modulation ; Peak-to-average power ratio (PAPR) ; Linear receiver
• 刊名：Optics Communications
• 出版年：2016
• 出版时间：15 July 2016
• 年：2016
• 卷：371
• 期：Complete
• 页码：112-116
• 全文大小：670 K

文摘

In the orthogonal frequency-division multiplexing (OFDM) systems for visible light communication (VLC), the peak-to-average power ratio (PAPR) of OFDM signals is the primary concern of high-speed data transmission. In order to get low PAPR signals and reduce the influence of nonlinearity of the light-emitting diode (LED), a phase modulated OFDM (PM-OFDM) system is developed and a linear receiver is presented. Unlike the conventional angle detection receiver implemented by arctangent calculator, the linear receiver has lower computation complexity and is immune to the threshold effect. Simulation results indicate that the proposed PM-OFDM obtains significant performance gains over DC-biased optical OFDM (DCO-OFDM) and precoded OFDM.