多个可重构智能表面辅助的双向通信系统中断概率分析

宋康; 董丹丹; 李春国

doi:10.11999/JEIT220072

多个可重构智能表面辅助的双向通信系统中断概率分析

doi: 10.11999/JEIT220072

宋康^{1, 2, ,},
董丹丹¹,
李春国³

1.
青岛大学电子信息学院青岛 266071
2.
西安邮电大学陕西省信息通信网络及安全重点实验室西安 710121
3.
东南大学信息科学与工程学院南京 210096

基金项目: 国家重点研发计划(2020YFB1807201)，国家自然科学基金(61901241, 62171119)，江苏省重点研发计划(BE2021013-3)，陕西省信息通信网络及安全重点实验室开放课题基金(ICNS201903)

详细信息

作者简介:
宋康：男，1986年生，副教授，研究方向为协作通信、智能信号处理

董丹丹：女，1998年生，硕士生，研究方向为无线通信、智能反射表面

李春国：男，1983年生，教授，研究方向为无线通信理论与技术、人工智能信号处理理论

通讯作者:
宋康　sk@qdu.edu.cn

中图分类号: TN929.5
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出版历程
- 收稿日期: 2022-01-17
- 修回日期: 2022-04-07
- 网络出版日期: 2022-04-19
- 刊出日期: 2022-07-25

Outage Performance Analysis of Multiple Reconfigurable Intelligent Surfaces Assisted Two-way Communication System

SONG Kang^{1, 2
, ,},
DONG Dandan¹,
LI Chunguo³

1.
College of Electronic and Information Engineering, Qingdao University, Qingdao 266071, China
2.
Shaanxi Key Laboratory of Information Communication Network and Security, Xi’an University of Posts & Telecommunications, Xi’an 710121, China
3.
School of Information Science and Engineering, Southeast University, Nanjing 210096, China

Funds: The National Key Research and Development Program of China (2020YFB1807201), The National Natural Science Foundation of China (61901241, 62171119), The Key Research and Development Plan of Jiangsu Province (BE2021013-3), The Open Research Funds of Shaanxi Key Laboratory of Information Communication Network and Security (ICNS201903)

摘要

摘要: 可重构智能表面(RIS)可以智能地改变无线传播环境来显著提高通信性能，被视为6G的潜在关键技术之一。为了进一步提升RIS辅助通信系统的性能，该文提出一种双向RIS选择方案，通过引入全双工技术和自干扰消除技术，有效提高了系统传输效率。研究了所提方案在瑞利衰落信道下的中断性能，推导了所提系统的中断概率的闭合表达式，得到了系统中断概率与系统中RIS反射单元的数量、RIS个数等系统参数之间的函数关系。最后，蒙特卡罗仿真验证了推导的准确性和所提方案的性能优势。
- 可重构智能表面 /
- 双向通信系统 /
- 中断概率
Abstract: Reconfigurable Intelligent Surface (RIS), which can intelligently change the wireless propagation environment to improve significantly communication performance, has been regarded as one of the potential key technologies of 6G. In order to enhance further the performance of RIS-assisted communication system, a two-way RIS selection communication scheme is proposed in this paper, and the transmission efficiency of the system is effectively improved by introducing full-duplex technology and self-interference cancellation technology. The closed-form expression of the outage probability of the proposed system is derived under Rayleigh fading channel, and the relationship among the outage probability, the number of RIS reflecting elements and the number of RIS in the system is obtained. Finally, the accuracy of the derivation and the performance advantages of the proposed scheme are verified by Monte Carlo simulations.
- Reconfigurable Intelligent Surface(RIS) /
- Two-way communication stystem /
- Outage probability

HTML全文

图 1 多个RIS辅助双向通信系统

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图 2 $ {U_1} $处SINR的CDF曲线图

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图 3 N不同时中断概率随发送功率P变化曲线

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图 4 中断概率在不同$ {k^2} $下随发送功率P变化曲线

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图 5 随机选择、机会选择下系统中断概率对比图

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