Capacity Maximization of OWC Systems via Joint Precoding and Probabilistic Shaping
Publication in refereed journal

香港中文大學研究人員
替代計量分析
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其它資訊
摘要We propose and experimentally demonstrate a capacity-approaching scheme via joint probabilistic shaping (PS) and precoding in an optical wireless communication (OWC) system. Different from the bit-and-power- and entropy-loading schemes, the proposed scheme only requires one modulation format with one single-PS distribution while offering the ability of maximizing the system's throughput. Moreover, we show that the proposed scheme also exhibits superior spectral efficiency (SE) and generalized mutual information (GMI) performances. As a result, the implementation complexity is significantly reduced without affecting the capacity-approaching capability. We show that for a 36-Gbit/s OWC transmission, ~5 dB improvement in the received optical power (ROP) sensitivity can be achieved by using the proposed scheme. In addition, a maximized 48-Gbit/s transmission over 2-m OWC channel is successfully demonstrated with a BER lower than 3.8 × 10 -3 , which corresponds to more than 33% capacity enhancement.
出版社接受日期07.05.2019
著者Yingjie Shao, Yang Hong, Zhouyi Hu, Lian-Kuan Chen
期刊名稱IEEE Photonics Technology Letters
出版年份2019
月份7
日期1
卷號31
期次13
出版社Institute of Electrical and Electronics Engineers (IEEE)
出版地USA
頁次1013 - 1016
國際標準期刊號1041-1135
電子國際標準期刊號1941-0174
語言美式英語
關鍵詞Optical wireless communication, optical OFDM, probabilistic shaping.

上次更新時間 2020-16-01 於 02:10