|
|||||
|
|
Grouped DCT precoding for PAPR reduction in optical direct detection OFDM systems |
|
| Authors: | Zhong-peng Wang and Shao-zhong Zhang |
| Affiliation: | 13021. School of Information and Electronic Engineering, Zhejiang University of Science and Technology, Hangzhou, 310023, China 23021. State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, 210096, China 33021. Faculty of Electronic and Information Engineering, Zhejiang Wanli University, Ningbo, 315100, China |
| Abstract: | A new grouped precoding technique based on discrete cosine transform (DCT) is presented for peak to average power ratio (PAPR) reduction of optical intensity modulated/direct detection (IM/DD) orthogonal frequency division multiplexing (OFDM) system. The computational complexity of the scheme is reduced by at least about 15% compared with that of the ordinary DCT precoding scheme when the number of groups is 2. The PAPR with this method can be reduced by about 0.8 dB. Meantime, compared with original OFDM, the bit error rate (BER) performance of system is improved. So the proposed scheme for reducing PAPR is very effective in optical IM/DD OFDM systems. |
| Keywords: | |
| 本文献已被 CNKI SpringerLink 等数据库收录！ | |
| 点击此处可从《光电子快报》浏览原始摘要信息 | |
| 点击此处可从《光电子快报》下载全文 | |