通信学报2024，Vol.45Issue(6)：176-186,11.DOI:10.11959/j.issn.1000-436x.2024116
双模三维索引调制差分混沌移位键控系统的设计及性能分析
Design and performance analysis of dual-mode triple-dimensional index modulation differential chaos shift keying system
摘要
Abstract
Given the issues of low transmission rate and poor bit error performance in traditional differential chaos shift keying systems,a dual-mode three-dimensional index modulation differential chaos shift keying(DMTD-IM-DCSK)sys-tem was proposed.This system simultaneously utilized time slots,orthogonal codes,and sort index to transmit informa-tion on both selected and unselected time slots.At the receiver,the variance of noise was reduced and the system's error performance was improved by the use of denoising techniques.Formulas for bit error rate(BER)were derived for addi-tive white Gaussian noise channels and multipath Rayleigh fading channels.Simulation results demonstrate that,com-pared to similar chaotic keying systems,the proposed system achieves higher data rates and superior error performance.关键词
混沌通信/差分混沌移位键控/索引调制/联合解调算法Key words
chaos communication/differential chaos shift keying/index modulation/joint demodulation algorithm分类
信息技术与安全科学引用本文复制引用
贺利芳,武兴根,薛岩松..双模三维索引调制差分混沌移位键控系统的设计及性能分析[J].通信学报,2024,45(6):176-186,11.基金项目
重庆市自然科学基金资助项目(No.CSTB2023NSCQ-MSX0235,No.cstc2021jcyj-msxmX0836)The Chongqing Natural Science Foundation(No.CSTB2023NSCQ-MSX0235,No.cstc2021jcyj-msxmX0836) （No.CSTB2023NSCQ-MSX0235,No.cstc2021jcyj-msxmX0836）
