Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6888350 | Optical Fiber Technology | 2018 | 7 Pages |
Abstract
High peak-to-average power ratio (PAPR) of the transmit signal is a major drawback in optical orthogonal frequency division multiplexing (OOFDM) system. In this paper, we propose and experimentally demonstrate a novel hybrid scheme, combined the Huffman coding and Discrete Fourier Transmission-Spread (DFT-spread), in order to reduce high PAPR in a 16-QAM short-reach intensity-modulated and direct-detection OOFDM (IMDD-OOFDM) system. The experimental results demonstrated that the hybrid scheme can reduce the PAPR by about 1.5, 2, 3 and 6â¯dB, and achieve 1.5, 1, 2.5 and 3â¯dB receiver sensitivity improvement compared to clipping, DFT-spread and Huffman coding and original OFDM signals, respectively, at an error vector magnitude (EVM) of â10â¯dB after transmission over 20â¯km standard single-mode fiber (SSMF). Furthermore, the throughput gain can be of the order of 30% by using the hybrid scheme compared with the cases of without applying the Huffman coding.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Miao Peng, Ming Chen, Hui Zhou, Qiuzhen Wan, LeYong Jiang, Lin Yang, Zhiwei Zheng, Lin Chen,