光通信技术2018，Vol.42Issue(3)：5-8,4.DOI:10.13921/j.cnki.issn1002-5561.2018.03.002
一种降低可见光通信系统PAPR的P-OFDM方法
P-OFDM methods for reducing PAPR in visible light communication
摘要
Abstract
In the visible light communication system, a new orthogonal of polar orthogonal frequency division multiplexing (P-OFDM) method is proposed for the peak-to-average ratio (PAPR) problem. At the sending side, the idea of polar transmition, the real part and the imaginary part of the complex signal in the time do-main obtained by the IFFT converter are converted into the amplitude and the phase under polar coordinates. After compressed conversion, amplitude and phase are transmitted simultaneously in the channel to meet the requirement that signals are both real and unipolar in visible light communication. At the receiver side, the re-ceived signals are decompressed by the extended transform, and the original signal are restored by the reverse polar transform and FFT transform. Through simulatting, the results show that the P-OFDM system can not only effectively reduce the PAPR of the system, but also improve the spectrum efficiency and bit error rate performance. The overall performance of the system is effectively enhanced.关键词
可见光通信/P-OFDM/极性正交频分复用/峰均比/压扩变换Key words
visible light communication/P-OFDM/polar orthogonal frequency division multiplexing/peak-to-average radio/companding transform分类
信息技术与安全科学引用本文复制引用
赵瑶,王翀,高伟,张进玉,王姣..一种降低可见光通信系统PAPR的P-OFDM方法[J].光通信技术,2018,42(3):5-8,4.基金项目
国家自然科学基金(11604262)资助. （11604262）
