| 基于DHT的光OFDM系统PAPR抑制算法 |
| |
| 引用本文： | 陈琳,方勇.基于DHT的光OFDM系统PAPR抑制算法[J].光通信技术,2012(7):60-62. |
| |
| 作者姓名： | 陈琳 方勇 |
| |
| 作者单位： | 上海大学通信与信息工程学院特种光纤与光接入网重点实验室;上海电力学院计算机与信息工程学院 |
| |
| 基金项目： | 国家自然科学基金(61132004)资助;上海市重点学科项目(S30108)资助;上海市科委重点实验室项目(08DZ2231100)资助 |
| |
| 摘 要： | 针对光OFDM系统存在高峰均功率比(PAPR),提出了一种基于离散哈特利变换(DHT)的选择映射抑制算法。采用快速哈特利逆变换(IFHT)代替传统的快速傅立叶逆变换(IFFT)和Hermi t i an对称算法,并结合非对称限幅法产生满足光OFDM系统要求的正、实值信号送入光纤信道。
|
| 关 键 词： | 光正交频分复用 峰均功率比 选择映射算法 离散哈特利变换 |
PAPR reduction algorithm for optical OFDM systems based on discrete Hartley transform |
| |
| CHEN Lin,FANG Yong.PAPR reduction algorithm for optical OFDM systems based on discrete Hartley transform[J].Optical Communication Technology,2012(7):60-62. |
| |
| Authors: | CHEN Lin FANG Yong |
| |
| Affiliation: | 1(1.School of Communication and Information Engineering, Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University,Shanghai 200072,China;2.School of Computer and Information Engineering,Shanghai University of Electronic Power,Shanghai 200090,China) |
| |
| Abstract: | In order to reduce the PAPR in optical Orthogonal Frequency Division Multiplexing(OFDM) systems, Selective Mapping(SLM) technique based on discrete Hartley transform is proposed in this paper.The main idea of the algorithm is to replace the inverse fast Fourier transform(IFFT) with the inverse fast Hartley transform(IFHT) and Hermitian symmetry in each subbolck to make the real baseband signal,and combined with the asymmetrically clipping technique to achieve the positive signal in optical OFDM systems. |
| |
| Keywords: | optical orthogonal frequency division multiplexing peak-to-average power ratio selective mapping discrete Hartley transform |
| 本文献已被 CNKI 等数据库收录！ |
