基于NOMA的D2D用户和蜂窝用户通信方案  

D2D user and cellular user communication scheme based on NOMA

作　　者：朱丽媛 王斌[1,2] 王文鼐[1,2] Zhu Liyuan;Wang Bin;Wang Wennai(College of Telecommunications&Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;Key Lab of Broadband Wireless Communication and Sensor Network Technology,Ministry ofEducation,Nanjing University of Posts and Telecommunications,Nanjing 210003,China)

机构地区：[1]南京邮电大学通信与信息工程学院,江苏南京210003 [2]南京邮电大学宽带无线通信与传感网技术教育部重点实验室,江苏南京210003

出　　处：《电子技术应用》2023年第3期95-99,共5页Application of Electronic Technique

摘　　要：LTE网络采用非正交多址来增强网络容量,采用D2D来提高频谱效率;让D2D用户使用非正交多址技术共享蜂窝用户的频谱资源可以缓解当下频谱资源短缺的问题,但也会在D2D用户和蜂窝用户之间引入干扰。提出了一种基于非正交多址技术(Non-orthogonal Multiple Access,NOMA)的D2D用户和蜂窝用户的共享研究方案,对于蜂窝用户和D2D用户之间的干扰采用SIC技术消除。该方案不仅通过调整用户的传输功率来优化系统的吞吐量,而且提高了边缘用户的性能。仿真结果表明,基于NOMA的D2D用户和蜂窝用户之间的通信方案在性能上优于传统的蜂窝资源分配方案和干扰控制方案。LTE network adopts non orthogonal multiple access to enhance network capacity and D2D to improve spectral efficiency. Allowing D2D users to share the spectrum resources of cellular users using non orthogonal multiple access technology can alleviate the current shortage of spectrum resources, but it will also introduce interference between D2D users and cellular users.This paper proposes a research scheme for the sharing between D2D users and cellular users based on non orthogonal multiple access(NOMA) technology. SIC technology is used to eliminate the interference between cellular users and D2D users. This scheme not only optimizes the system throughput by adjusting the transmission power of users, but also improves the performance of edge users. The simulation results show that the communication scheme between D2D users and cellular users based on NOMA is superior to the traditional cellular resource allocation scheme and interference control scheme in performance.

关 键 词：蜂窝 D2D NOMA 频谱复用 

分 类 号：TN929.5[电子电信—通信与信息系统]