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Anti-jamming performance of chaotic digital communication systems

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4 Author(s)
F. C. M. Lau ; Dept. of Electron. & Inf. Eng., Hong Kong Poly. Univ., China ; M. Ye ; C. K. Tse ; S. F. Hau

Among the various modulation schemes proposed for chaos-based digital communications, chaos-shift keying (CSK) and differential chaos-shift keying (DCSK) have been most thoroughly analyzed and considered for practical implementation. One important aspect of performance of any communication system is the ability to resist jamming. This area of study, however, is not available in the literature. In this paper, an analysis of antijamming performance of the coherent CSK and noncoherent DCSK systems is presented. The study includes performance analysis for the two types of systems in terms of the bit error probability under different levels of noise power, jamming power, jamming frequency and spreading factor. Computer simulations are used to verify the analytical results.

Published in:

IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications  (Volume:49 ,  Issue: 10 )