Performance Analysis of RIS Assisted NOMA Networks over Rician Fading Channels

Xianli Gong; Chongwen Huang; Xinwei Yue; Zhaohui Yang; Feng Liu

首页> 中文期刊> 《工程与科学中的计算机建模（英文）》 >Performance Analysis of RIS Assisted NOMA Networks over Rician Fading Channels

Performance Analysis of RIS Assisted NOMA Networks over Rician Fading Channels

开具论文收录证明 >>

期刊封面封底目录下载 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

In this paper,we consider a downlink non-orthogonal multiple access(NOMA)network assisted by two reconfigurable intelligent surfaces(RISs)over Rician fading channels,in which each user communicates with the base station by the virtue of a RIS to enhance the reliability of the received signal.To evaluate the system performance of our proposed RIS-NOMA network,we first derive the exact and asymptotic expressions for the outage probability and ergodic rate of two users.Then,we derive the exact and asymptotic upper bound expressions for the ergodic rate of the nearby user.Based on asymptotic analytical results,the diversity orders for the outage probability and the high signal-to-noise ratio(SNR)slopes for the ergodic rate of the two users are obtained in the high SNR regime.Moreover,we derive the system throughputs of the proposed RIS-NOMA network in delay-limited and delay-tolerant transmission modes.Numerical results confirm our analysis and demonstrate that:1)The outage probability and ergodic rate of RIS-NOMA networks are superior to that of RIS-assisted orthogonalmultiple access(OMA)networks;2)The RIS-NOMA networks have ability to achieve a larger system throughput compared to RIS-OMA networks;and 3)The system performance of RIS-NOMA networks can be significantly improved as the number of reflecting elements and Rician factor increases.

著录项

来源
《工程与科学中的计算机建模（英文）》 |2023年第6期|2531-2555|共25页
作者
Xianli Gong; Chongwen Huang; Xinwei Yue; Zhaohui Yang; Feng Liu;
展开▼
作者单位

School of Electronic and Information Engineering University;

College of Information Science and Electronic Engineering University;

International Joint Innovation Center University;

Zhejiang Provincial Key Laboratory of Information Processing and Networking(IPCAN);

School of Information and Communication Engineering Information Science and Technology University;

Zhejiang Laboratory;

展开▼
原文格式 PDF
正文语种 chi
中图分类 TN9;
关键词
Non-orthogonal multiple access; reconfigurable intelligent surface; outage probability; ergodic rate;

相似文献

中文文献
外文文献
专利

Performance Analysis of RIS Assisted NOMA Networks over Rician Fading Channels

摘要

著录项

相似文献

相关主题

期刊订阅