摘要
面向5G-Advanced和6G移动通信系统深度覆盖需求,提出基于非正交多址接入(NOMA)的智能超表面(RIS)和解码转发(DF)中继解决方案,通过系统建模、容量分析和能效分析,对比基于NOMA的RIS和DF中继方案的性能增益。典型场景下的数值仿真与对比分析表明,随着阵元数目的增大,相比于DF中继,RIS方案的能效增益逐渐增大。
In this paper,non-orthogonal multiple access(NOMA)schemes with reconfigurable intelligent surface(RIS)and decode-and-forward(DF)relay are proposed according to deep coverage requirements in 5G-Advanced and 6G.Then,system model of NOMA-RIS and NOMA-DF relay schemes are established.System analysis of NOMA-RIS and NOMA-DF relay are compared,including capacity and energy efficient.Numerical simulation and comparison analysis in typical scenarios show that RIS obtains more energy efficiency gain than DF relay as the number of array elements increases.
作者
李小双
刘秋妍
张忠皓
李福昌
李佳俊
Li Xiaoshuang;Liu Qiuyan;Zhang Zhonghao;Li Fuchang;Li Jiajun(China Unicom Research Institute,Beijing 100048,China;China Unicom Huasheng Co.,Ltd.,Beijing 100031,China)
出处
《电子技术应用》
2021年第9期5-8,共4页
Application of Electronic Technique
基金
国家重点研发计划项目(2020YFB1806701)。
关键词
无线通信
6G
智能超表面
转发中继
wireless network
6G
reconfigurable intelligent surface(RIS)
decode-and-forward relay
