FCI-DCSK-NR在电力线信道下的性能分析

程桂仙; 凌琴; 郑才; 陈芳; 张全玲; 陈平平

doi:10.12141/j.issn.1000-565X.250233

华南理工大学学报(自然科学版) >

2026 , Vol. 54 >Issue 1: 30 - 41

DOI: https://doi.org/10.12141/j.issn.1000-565X.250233

能源、动力与电气工程

FCI-DCSK-NR在电力线信道下的性能分析

程桂仙 ,
凌琴 ,
郑才 ,
陈芳 ,
张全玲 ,
陈平平

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^1.贵州师范大学物理与电子科学学院，贵州贵阳 550025
^2.广东电网有限责任公司惠州供电局，广东惠州 516003
^3.福州大学数字电视智能化技术国家地方联合工程研究中心，福建福州 350108

程桂仙（1986—），女，博士，副教授，主要从事人工智能、无线传感网络、电力线通信等研究。E-mail： chgx86@126.com

凌琴（1996—），女，硕士生，主要从事无线通信、电力线通信等研究。E-mail： 14786136422@163.com

收稿日期: 2025-07-15

网络出版日期: 2025-09-01

基金资助

国家自然科学基金项目(62361012);贵州省高等学校创新团队项目(黔教技［2023］064号)

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Performance Analysis of FCI-DCSK-NR over Power Line Channel

CHENG Guixian ,
LING Qin ,
ZHENG Cai ,
CHEN Fang ,
ZHANG Quanling ,
CHEN Pingping

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^1.School of Physics and Electronic Science，Guizhou Normal University，Guiyang 550025，Guizhou，China
^2.Huizhou Power Supply Bureau of Guangdong Power Grid Co. ，Ltd. ，Huizhou 516003，Guangdong，China
^3.National-Local Joint Engineering Research Center for Intelligent Technology of Digital Television，Fuzhou University，Fuzhou 350108，Fujian，China

Received date: 2025-07-15

Online published: 2025-09-01

Supported by

the National Natural Science Foundation of China(62361012)

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摘要

面向电力线信道，提出一种融合降噪和全载波索引的差分混沌移位键控（FCI-DCSK-NR）调制方案。该方案将降噪与全载波索引技术集成于差分混沌键控调制（DCSK），以有效应对复杂的电力线信道环境，尤其是脉冲噪声引起的干扰。首先，该方案将除参考载波外的所有载波分为两类，即第1类激活载波和第2类激活载波。两类载波将通过索引比特进行区分，索引比特选中的载波即为第1类激活载波，剩余的载波则作为第2类激活载波。之后，第1类激活载波和第2类激活载波将分别利用混沌信号及其希尔伯特变换后的信号传输第1类和第2类调制比特。此外，该方案通过在发送端的不同时隙多次发送相同信息，并在接收端对接收信号求平均，以降低脉冲噪声的影响。该文推导了FCI-DCSK-NR方案在电力线信道下的误码率表达式，并通过蒙特卡洛模拟验证了其正确性。理论分析与仿真结果表明：所提出的方案能够有效应对电力线信道中的脉冲噪声；与传统DCSK和广义载波索引DCSK（GCI-DCSK）方案相比，该方案在误码率性能和数据速率方面均有所提升。同时，该实验方案适合引入电网企业、高校及科研院所的实训环节，以助力相关人才培养。

关键词： 电力线信道; 全载波索引; 差分混沌移位键控; 脉冲噪声; 误码率

本文引用格式

程桂仙 , 凌琴 , 郑才 , 陈芳 , 张全玲 , 陈平平 . FCI-DCSK-NR在电力线信道下的性能分析[J]. 华南理工大学学报(自然科学版), 2026 , 54(1) : 30 -41 . DOI: 10.12141/j.issn.1000-565X.250233

Abstract

A differential chaos shift keying scheme that fuses noise reduction with full carrier indexing (FCI-DCSK-NR) is proposed for power-line channels. The scheme integrates noise reduction and full-carrier index techniques into differential chaos shift keying (DCSK) modulation to effectively tackle the complex power line channel environment, especially the interference caused by impulsive noise. Firstly, in this scheme, all subcarriers except the refe-rence carrier are divided into two categories, namely Type-1 active carriers and Type-2 active carriers. The two types of carriers are distinguished via index bits; the carriers selected by the index bits serve as Type-1 active ca-rriers, while the remaining subcarriers function as Type-2 active carriers. Subsequently, Type-1 and Type-2 active carriers transmit Type-1 and Type-2 modulation bits using chaotic signals and their Hilbert-transformed signals, respectively. Moreover, identical information is transmitted in multiple distinct time slots at the transmitter, and the received replicas are averaged at the receiver to mitigate impulsive noise. A closed-form bit-error-rate (Bit error rate, BER) expression for FCI-DCSK-NR over power line channels is derived and verified by Monte-Carlo simulations. Analytical and numerical results show that the proposed scheme effectively mitigates impulse noise in power line channels. Compared to traditional DCSK and Generalized Carrier Index DCSK (GCI-DCSK) schemes, the proposed method exhibits improvements in both BER performance and data rate. Additionally, this experimental scheme is well-suited for integration into training programs of power grid companies, universities, and research institutes, contributing to the cultivation of relevant technical talent.

Key words： power line channel; full carrier indexing; differential chaos shift keying; impulsive noise; bit error rate

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