https://doi.org/10.1140/epjb/e2012-30403-9
Regular Article
Multiple information transmission using only one scalar chaotic time series
1 Information Security Center, Beijing University of Posts and Telecommunications, P.O. Box 145, 100876 Beijing, P.R. China
2 National Engineering Laboratory for Disaster Backup and Recovery, Beijing University of Posts and Telecommunications, 100876 Beijing, P.R. China
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e-mail: penghaipeng2003@yahoo.com.cn
Received: 21 May 2012
Received in final form: 10 August 2012
Published online: 6 February 2013
In this paper, we explore the issue that how many messages can be transmitted through one scalar chaotic time series. A scheme is proposed for modulating multiple messages into the system. Based on the adaptive parameter estimation method, provided that some special conditions are satisfied, such as the long-time persistent excitation condition or the long-time linearly independent condition, the carried information could be recovered at the receiver. This scheme has potential application in chaotic optical communication (COC). Its feasibility and effectiveness are demonstrated by numerical examples.
Key words: Statistical and Nonlinear Physics
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2013
