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引用本文：

赵金鑫,万海斌,黎相成,等.融合通用滤波多载波的非正交多址接入技术[J].电讯技术，2019，59（3）： - . [点击复制]
ZHAO Jinxin,WAN Haibin,LI Xiangcheng,et al.Non-orthogonal multiple access technology combined with universal filtered multi-carrier[J].，2019，59（3）： - . [点击复制]

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融合通用滤波多载波的非正交多址接入技术
赵金鑫,万海斌,黎相成,陈海强,覃团发
0 字体:加大+\|默认\|缩小-
(1.广西大学计算机与电子信息学院，南宁 530004;2.广西多媒体通信与网络技术重点实验室，南宁 530004)

摘要:

典型的非正交多址接入技术（Non-orthogonal Multiple Access,NOMA）有稀疏码分（Sparse Code Multiple Access，SCMA）、多用户共享（Multi-user Shared Access，MUSA）、图样分割（Pattern Division Multiple Access，PDMA）等。为了研究这三种典型的NOMA技术与通用滤波多载波复用技术（Universal Filtered Multi-carrier,UFMC）技术结合后的性能，将三种典型的NOMA与UFMC结合，然后分析比较了它们的误码率性能，通过仿真对比得出UFMC-SCMA系统相比其他两种结合系统具有更好的系统性能。为了更进一步验证UFMC-SCMA系统的优点，还将其与热门的OFDM-SCMA系统进行对比。研究结果表明，由于UFMC-SCMA系统具有码本的稀疏性以及近似最优的信息传递算法（Message Passing Algorithm，MPA）检测方案，并采用子频带滤波，有效降低了误码率并提高了频谱效率，因而其具有较好的系统性能。

关键词: 非正交多址接入稀疏码分多址接入多用户共享接入图样分割多址接入通用滤波多载波复用

DOI：

基金项目:国家自然科学基金资助项目（61661005,61761006,61761007）

Non-orthogonal multiple access technology combined with universal filtered multi-carrier

ZHAO Jinxin,WAN Haibin,LI Xiangcheng,CHEN Haiqiang,QIN Tuanfa

(1.School of Computer and Electronic Information,Guangxi University,Nanning 530004,China; 2.Guangxi Key Laboratory of Multimedia Communications and Network Technology,Nanning 530004,China)

Abstract:

Typical non-orthogonal multiple access(NOMA) technologies include sparse code multiple access(SCMA),multi-user shared access(MUSA) and pattern division multiple access(PDMA) technology,etc.To research the performance of three typical NOMA technologies combined with universal filtered multi-carrier(UFMC) technology,this paper firstly combines the three typical NOMA technologies with UFMC,and compares their bit error rate(BER) performances.Furthermore,in order to verify the advantages of the UFMC-SCMA system,it also compares the BER and spectrum efficiency of the UFMC-SCMA system with the OFDM-SCMA system respectively.Simulation results show that UFMC-SCMA has better system performance due to the sparsity of the codebook of UFMC-SCMA system and the approximate optimal message passing algorithm(MPA) detection algorithm,and also because sub-band filtering is used,the BER is reduced effectively and the spectral efficiency is improved.

Key words: non-orthogonal multiple access(NOMA) sparse code multiple access(SCMA) multi-user shared access(MUSA) pattern division multiple access(PDMA) universal filtered multi-carrier(UFMC)