An M-ary Code Shifted Differential Chaos Shift Keying Scheme

被引：0

作者：

Tan, Yunsheng ^{[1
]}

Xu, Weikai ^{[1
]}

Hong, Shaohua ^{[1
]}

机构：

[1] Xiamen Univ, Dept Commun Engn, Xiamen 361005, Fujian, Peoples R China

来源：

2017 23RD ASIA-PACIFIC CONFERENCE ON COMMUNICATIONS (APCC): BRIDGING THE METROPOLITAN AND THE REMOTE | 2017年

关键词：

Chaos Communications; M-ary Constellation Modulation; Code Shifted Differential Chaos Shift Keying (CS-DCSK); Spectrum Efficiency; PERFORMANCE; SYSTEM; DESIGN; DCSK;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, by applying M-ary constellation modulation to code shifted differential chaos shift keying (CS-DCSK), a new M-ary DCSK which is called CS-MDCSK, is proposed. In the proposed scheme, the reference chaos signal is the same with the CS-DCSK, and the two orthogonal components of information bearing signal are obtained by two Walsh codes. Furthermore, the proposed CS-MDCSK is extended to general scheme (GCS-MDCSK), which transmits more than one M-ary constellation information bearing signals with one reference. Since high order constellations are used, the proposed scheme enhances the spectrum efficiency compared to CS-DCSK and GCS-DCSK. By computer simulations, the hit error rate (BER) performance of two proposed systems are compared to that of CS-DCSK and GCS-DCSK, respectively. Simulation results show that the proposed systems outperform the CS-DCSK and GCS-DCSK when 4-ary constellation is applied.

引用

页码：168 / 173

页数：6

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