Design and Performance Analysis of a Multi-Carrier M-Ary DCSK System with Multilevel Code-Shifted Modulation Based on Fractional-Order Chaos

被引：4
作者：
Jia, Ya-Qiong [1 ,2 ]
Jiang, Guo-Ping [1 ]
Yang, Hua [3 ]
Yu, Bin [1 ,2 ]
Du, Ming-Di [2 ]
机构：
[1] Nanjing Univ Posts & Telecommun, Coll Automat, Nanjing 210023, Peoples R China
[2] Hunan Inst Technol, Dept Elect & Informat Engn, Hengyang 421002, Peoples R China
[3] Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210023, Peoples R China
来源：
ELECTRONICS | 2021年 / 10卷 / 19期
基金：
中国国家自然科学基金;
关键词：
chaos-based communications; multilevel code-shifted differential chaos shift keying; M-ary modulation; multi-carrier; fractional-order chaos system; bit error rate; KEYING SYSTEM; SCHEME;
D O I：
10.3390/electronics10192343
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A new fractional-order multi-carrier M-ary differential chaos shift keying system with multilevel code-shifted modulation (MC-MDCSK-MCS) is presented in this paper. The proposed system adopts multiple subcarriers, on which multiple MCS-MDCSK-modulated signals are transmitted simultaneously. Moreover, M-ary modulation has been combined with the proposed system to achieve a higher bit rate. On the receiver side, the recovered reference signal is first averaged and then used for MCS-MDCSK demodulation, which helps improve performance. We analyze the bit error rate (BER) of the proposed system and verify our theoretical derivations with the simulation results over additive white Gaussian noise (AWGN) and Rayleigh fading channels. Finally, related comparisons are completed, which show that the MC-MDCSK-MCS system is excellent and promising.
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页数：12
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