通信学报 ›› 2022, Vol. 43 ›› Issue (3): 113-123.doi: 10.11959/j.issn.1000-436x.2022060

• 学术论文 • 上一篇    下一篇

跳时短参考载波索引差分混沌移位键控通信方案

杨华1, 王宇1, 徐思远1, 蒋国平2   

  1. 1 南京邮电大学电子与光学工程学院、微电子学院,江苏 南京 210023
    2 南京邮电大学自动化学院、人工智能学院,江苏 南京 210023
  • 修回日期:2021-12-20 出版日期:2022-03-25 发布日期:2022-03-01
  • 作者简介:杨华(1980- ),女,河南南阳人,博士,南京邮电大学副教授、硕士生导师,主要研究方向为非线性电路与系统、混沌保密通信、复杂网络等
    王宇(1998- ),男,江苏无锡人,南京邮电大学硕士生,主要研究方向为混沌保密通信
    徐思远(1995- ),男,广东佛山人,南京邮电大学硕士生,主要研究方向为混沌保密通信
    蒋国平(1966- ),男,江苏镇江人,博士,南京邮电大学教授、博士生导师,主要研究方向为混沌保密通信、混沌控制、复杂网络等
  • 基金资助:
    国家自然科学基金资助项目(61971240);国家自然科学基金资助项目(61873326);湖南省自然科学基金资助项目(2019JJ60024)

Time hopping short reference carrier index differential chaos shift keying communication scheme

Hua YANG1, Yu WANG1, Siyuan XU1, Guoping JIANG2   

  1. 1 College of Electronic and Optical Engineering &College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
    2 College of Automation &College of Artificial Intelligence, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
  • Revised:2021-12-20 Online:2022-03-25 Published:2022-03-01
  • Supported by:
    The National Natural Science Foundation of China(61971240);The National Natural Science Foundation of China(61873326);The Natural Science Foundation of Hunan Province(2019JJ60024)

摘要:

为有效利用载波索引差分混沌移位键控通信系统中参考信号的发射功率,提出了一种跳时短参考载波索引差分混沌移位键控通信方案。首先,将符号时间分成多个时隙后,根据参考索引比特取其中的一个时隙来发送短参考信号;然后,推导了所提方案在加性白高斯噪声信道和多径Rayleigh衰落信道下的理论误码率计算式。仿真结果表明,所提方案在频带利用率、系统能量效率以及误码率性能方面都有显著提升。

关键词: 差分混沌移位键控, 载波索引调制, 短参考, 跳时, 频带利用率

Abstract:

In order to effectively utilize the transmission power of the reference signals in carrier index differential chaos shift keying (CI-DCSK), a novel time hopping short reference carrier index differential chaos shift keying communication system was proposed.Firstly, the symbol time was divided into multiple time slots, one of which was selected to send short reference signals according to the reference index bits.Then, analytical bit error rate expressions over additive white Gaussian noise and multipath Rayleigh fading channels were derived.Simulation results verify that the proposed scheme has a significant improvement in spectral efficiency, system energy efficiency and bit error rate performance.

Key words: differential chaos shift keying, carrier index modulation, short reference, time hopping, spectral efficiency

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