Asynchronous optical CDMA system with double hard limiters using frequency-time spreading modified prime code

Wenhua Ma; Chao Zuo; Hongtu Pu; Jintong L. Lin

doi:10.1117/12.445126

16 October 2001 Asynchronous optical CDMA system with double hard limiters using frequency-time spreading modified prime code

Wenhua Ma, Chao Zuo, Hongtu Pu, Jintong L. Lin

Author Affiliations +

Proceedings Volume 4583, Metro and Access Networks; (2001) https://doi.org/10.1117/12.445126
Event: Asia-Pacific Optical and Wireless Communications Conference and Exhibit, 2001, Beijing, China

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.

Citation Download Citation

Wenhua Ma, Chao Zuo, Hongtu Pu, and Jintong L. Lin "Asynchronous optical CDMA system with double hard limiters using frequency-time spreading modified prime code", Proc. SPIE 4583, Metro and Access Networks, (16 October 2001); https://doi.org/10.1117/12.445126

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