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Proceedings Paper

Asynchronous optical CDMA system with double hard limiters using frequency-time spreading modified prime code
Author(s): Wenhua Ma; Chao Zuo; Hongtu Pu; Jintong L. Lin
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Paper Abstract

By designating different frequencies to different mark positions of the modified prime code, a frequency-time spreading code is proposed. The side lobe of auto-correlation and cross-correlation of the proposed code have relatively lower values. The scheme greatly improves the total number of the available codes in asynchronous optical code division multiple access (OCDMA) system. Numerical results show that the asynchronous OCDMA system using the proposed code has excellent performance in the presence of double hard limiters. We also introduce an encoding/decoding device which is based on the frequency-time spreading modified prime code.

Paper Details

Date Published: 16 October 2001
PDF: 8 pages
Proc. SPIE 4583, Metro and Access Networks, (16 October 2001); doi: 10.1117/12.445126
Show Author Affiliations
Wenhua Ma, Beijing Univ. of Posts and Telecommunications (China)
Chao Zuo, Beijing Univ. of Posts and Telecommunications (China)
Hongtu Pu, Beijing Univ. of Posts and Telecommunications (China)
Jintong L. Lin, Beijing Univ. of Posts and Telecommunications (China)

Published in SPIE Proceedings Vol. 4583:
Metro and Access Networks
Wanyi Gu; Jianhui Zhou; Jin-Yi Pan, Editor(s)

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