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Proceedings Paper

Numerical investigations on the message encoding and decoding techniques of the incoherent optical feedback chaotic system
Author(s): Li Xu; Guangqiong Xia; Li Fan; Xiaojuan Yan; Xiaofa Wang; Zhengmao Wu
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Paper Abstract

Based on the theoretical model of the synchronization system with incoherent optical feedback, message encoding and decoding of the chaotic system have been investigated. The results show that message can be hidden efficiently in the chaotic signal during the transmission with three encryption schemes (i.e., chaos shift keying (CSK), chaos masking (CMS) and additive chaos modulation (ACM)); the message of 250Mb/s can be decoded in the receiver with CSK and CMS; when the bit rate increases to 2.5Gb/s, the message can not be decoded with CSK and the quality of message decoded with CMS becomes bad; and when the bit rate increases to 12.5Gb/s, the message can not be decoded with CSK and CMS, however the message can be decoded perfectly by adopting ACM.

Paper Details

Date Published: 7 January 2008
PDF: 8 pages
Proc. SPIE 6824, Semiconductor Lasers and Applications III, 682411 (7 January 2008); doi: 10.1117/12.753961
Show Author Affiliations
Li Xu, Southwest Univ. (China)
Guangqiong Xia, Southwest Univ. (China)
Li Fan, Southwest Univ. (China)
Xiaojuan Yan, Southwest Univ. (China)
Xiaofa Wang, Southwest Univ. (China)
Zhengmao Wu, Southwest Univ. (China)

Published in SPIE Proceedings Vol. 6824:
Semiconductor Lasers and Applications III
Lianghui Chen; Hiroyuki Suzuki; Paul T. Rudy; Ninghua Zhu, Editor(s)

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