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Title: Permutation-based DCSK and multiple-access DCSK systems
Authors: Lau, Francis Chung-ming
Cheong, Kai-yuen
Tse, C. K. Michael
Subjects: Chaos communication
Differential chaos-shift-keying
Multiple access
Issue Date: Jun-2003
Publisher: IEEE
Source: IEEE transactions on circuits and systems. I, Fundamental theory and applications, June 2003, v. 50, no. 6, p. 733-742.
Abstract: This paper presents a method for enhancing the differential chaos-shift-keying (DCSK) and multiple access DCSK systems. By introducing a permutation transformation which destroys the similarity between the reference and data samples in a DCSK system, the bit rate can be made undetectable from the frequency spectrum, thereby enhancing the data security. Using different transformations for different users, the interference between users in a multiple-access system can be minimized, and each symbol is ensured to be sent within one bit duration for all users. Furthermore, the implementation requires only slight modification to the original DCSK system.
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Type: Journal/Magazine Article
DOI: 10.1109/TCSI.2003.812616
ISSN: 1057-7122
Appears in Collections:EIE Journal/Magazine Articles

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