Optical CDMA system using duobinary signaling scheme and LDPC code

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• 作者：Maw-Yang Liu ; Ting-Lin Wang ; Yung-Chung Wang…
• 关键词：Optical CDMA ; Duobinary signaling scheme ; Carrier ; hopping prime code ; LDPC code
• 刊名：Optical and Quantum Electronics
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：48
• 期：1
• 全文大小：747 KB
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• 作者单位：Maw-Yang Liu (1)
  Ting-Lin Wang (1)
  Yung-Chung Wang (2)
  Chien-Hsien Chiang (1)
  
  1. Department of Electrical Engineering, National Ilan University, No. 1, Sec. 1, Shen-Lung Road, Yilan City, Taiwan
  2. Department of Electrical Engineering, National Taipei University of Science and Technology, No. 1, Sec. 3, Zhongxiao E. Road, Taipei, Taiwan
  
• 刊物主题：Optics, Optoelectronics, Plasmonics and Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks;
• 出版者：Springer US
• ISSN：1572-817X

文摘

In this paper, the duobinary signaling scheme and LDPC code are employed for enhancing the performance in time-spreading wavelength-hopping optical CDMA system. As the multiple access interference and beat noise will bring about serious adverse impact on system performance, using duobinary signaling scheme is a preferable manner to alleviate such channel impairments. In our proposed system, the duobinary signaling scheme is predicated upon EWO, which applies the orthogonality of carrier-hopping prime code. Once the channel condition is further improved, the utilization of LDPC code would be more powerful and can make tremendous progress in performance. Our proposed scheme is compact and simple; also it can allow more simultaneous users accommodated in the network. Therefore, it is a promising way to be the platform for broadband optical access network. Keywords Optical CDMA Duobinary signaling scheme Carrier-hopping prime code LDPC code