基于有源智能反射面反射单元分组的反射调制系统

熊军洲; 李国权; 王钥涛; 林金朝

doi:10.11999/JEIT231187

基于有源智能反射面反射单元分组的反射调制系统

doi: 10.11999/JEIT231187

熊军洲^{1, 2},
李国权^1, ,,
王钥涛¹,
林金朝¹

1.
重庆邮电大学通信与信息工程学院重庆 400065
2.
重庆电子科技职业大学电子与物联网学院重庆 401331

基金项目: 国家自然科学基金(U21A20447)，重庆市自然科学基金创新群体科学基金(cstc2020jcyj-cxttX0002)

详细信息

作者简介:
熊军洲：男，博士生，研究方向为智能反射面、索引调制技术等

李国权：男，教授，博士生导师，研究方向为5G/6G通信、智能反射面等

王钥涛：男，硕士生，研究方向为智能反射面、索引调制技术等

林金朝：男，教授，博士生导师，研究方向为无线传输技术、BAN网络与信道处理技术等

通讯作者:
李国权　ligq@cqupt.edu.cn

中图分类号: TN92
计量
- 文章访问数: 137
- HTML全文浏览量: 35
- PDF下载量: 30
- 被引次数: 0
出版历程
- 收稿日期: 2023-10-31
- 修回日期: 2024-04-22
- 网络出版日期: 2024-05-13

A Reflection Modulation System Based on Reflecting Element Grouping of Active Intelligent Reflecting Surface

1.
School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2.
School of Electronics and Internet of Things, Chongqing Polytechnic University of Electronic Technology, Chongqing 401331, China

Funds: The National Natural Science Foundation of China (U21A20447), The Foundation for Innovative Research Groups of the Natural Science Foundation of Chongqing (cstc2020jcyj-cxttX0002)

摘要

摘要: 为克服智能反射面(IRS)辅助通信系统的“双重路径损耗”，进一步提升系统的可靠性和频谱效率，该文提出一种基于有源IRS反射单元分组的反射调制(RM)系统方案，利用有源反射单元分组的数量来传输额外信息。然后基于矩母函数推导了最大似然检测算法下基站发射符号与有源反射单元分组数量的平均成对错误概率，获取到系统的理论比特错误概率(BEP)上界以及可达速率。仿真结果验证了理论推导的准确性，同时表明所提方案具有更优的误码性能和频谱效率。
- 智能反射面 /
- 反射调制 /
- 比特错误概率 /
- 可达速率
Abstract: To overcome the “double path loss” in Intelligent Reflecting Surface (IRS) assisted communication system and further enhance reliability and spectral efficiency, a Reflection Modulation (RM) system scheme based on grouping of active IRS reflecting elements is proposed. This scheme utilizes the number of active reflecting element groups to transmit additional information. Then the average pairwise error probability of both the symbols transmitted by base station and the number of active reflecting element groups under the maximum likelihood detection algorithm is derived based on the moment generating function, and an upper bound on the theoretical Bit Error Probability (BEP) as well as the achievable data rate of the system are obtained. Simulation results verify the accuracy of the theoretical derivation and demonstrate the superior error performance and spectral efficiency of the proposed scheme.
- Intelligent Reflecting Surface (IRS) /
- Reflection Modulation (RM) /
- Bit Error Probability (BEP) /
- Achievable rate

HTML全文

图 1 系统模型

下载: 全尺寸图片幻灯片

图 2 不同RE数量下的BER性能

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图 3 不同方案的BER性能

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图 4 不同的RE分组数量和BS调制阶数下的BER性能

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图 5 存在信道相位估计误差时的BER性能

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图 6 不同方案的可达速率对比

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表 1 $ N = 6 $, $ L = 3 $时基于RE分组的RM比特映射关系

IRS传输的信息位

00 01 10 11

有源分组数量$ l $ 0 1 2 3

IRS反射状态

下载: 导出CSV

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