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http://dx.doi.org/10.7471/ikeee.2020.24.3.814

Chaos system using PPM-DCSK modulation  

Kim, Sung-Gon (Dept. of IT Convergence Control, Busan Campus of KOREA POLYTECHNIC)
Jang, Eun-Young (Consultant of Korea Invention Promotion Association)
Publication Information
Journal of IKEEE / v.24, no.3, 2020 , pp. 814-820 More about this Journal
Abstract
In the M-ary DCSK system up to now, as M increases, the distance between constellation signal points becomes closer and performance deteriorates. we propose a hybrid modulation scheme based on PPM and DCSK to improve the BER performance. one part of the bit is modulated by the PPM and the other part by DCSK. Thus, the information bearing signal is modulated simultaneously according to the selected pulse position of the PPM determined by the information bit and the additional information bit. The analytical BER performance of the proposed plan is derived and verified by simulation. The results show that the proposed scheme outperforms conventional M-DCSK, code index modulation DCSK and rectified code index DCSK in additional white Gaussian noise and multipath Rayleigh fading channels.
Keywords
chaos communication; PPM; DCSK; PPM-DCSK; M-DCSK;
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Times Cited By KSCI : 2  (Citation Analysis)
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