Evaluation of bit-error-rate performance for DCSK system over land mobile satellite channel

Abstract: 60 | PDF: 41

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Author

  • Doan Thi Que, Nguyen Trong Thai, Nguyen Xuan Quyen, Hoang Manh Thang

Keywords:

chaos-based spread modulation
differential chaos shift keying
DCSK
land mobile satellite channel
Lutz channel model

Abstract

In chaos-based digital communications, Differential chaos-shift keying (DCSK) systems have been widely studied owing to their non-coherent demodulation without any synchronization. To date, BER performance of these systems is investigated over various transmission channels such as noise, fading, multipath, optical fiber, and under-water. In this paper, we present for the first time the evaluation of BER performance of conventional DCSK system over a land mobile satellite channel. The Lutz channel model with two-state, i.e., the best proper model, for describing satellite environments as well as the discrete-time models of DCSK transmitter and receiver are described and analyzed. In particular, the probability density functions (PDFs) of random processes in the channel model are defined and verified by comparing with the computed functions. The studied system with specific parameters is built up by means of a numerical simulation platform on PC. We finally evaluate the system performance in terms of BER values against Eb/N0, channel states, spreading factor, and used chaotic maps.

References

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Published

Nov 30, 2017
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How to Cite
Doan Thi Que, Nguyen Trong Thai, Nguyen Xuan Quyen, Hoang Manh Thang. “Evaluation of Bit-Error-Rate Performance for DCSK System over Land Mobile Satellite Channel”. The University of Danang - Journal of Science and Technology, vol. 11, no. 120.4, Nov. 2017, pp. 50-54, https://jst-ud.vn/jst-ud/article/view/3835.

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