QQ客服 官方微博 反馈留言

	Power allocation scheme and spectral efficiency analysis for downlink non-orthogonal multiple access systems
	Cai, Wenbo ; Chen, Chen ; Bai, Lin ; Jin, Ye ; Choi, Jinho
刊名	IET SIGNAL PROCESSING
	2017
关键词	multi-access systems spectral analysis radio links computational complexity antennas telecommunication power management power allocation scheme spectral efficiency analysis downlink nonorthogonal multiple access systems SE analysis single antenna downlink NOMA system SRMC-MRC PA problem duality scheme specific user rate maximising criteria with minimum rate constraints SURMC-MRC scheme sum rate maximising criteria with minimum rate constraints computational complexity THROUGHPUT CAPACITY
DOI	10.1049/iet-spr.2016.0340
英文摘要	In this study, the authors investigate the power allocation (PA) problem and spectral efficiency (SE) analysis for the single antenna downlink non-orthogonal multiple access (NOMA) system under the sum rate maximising criteria with minimum rate constraints (SRMC-MRC). For the PA problem, they propose the duality scheme for SRMC-MRC which is considered as the optimal solution for the PA problem on one orthogonal subband in the single antenna NOMA system. They propose the specific user rate maximising criteria with minimum rate constraints (SURMC-MRC) scheme to decrease the computational complexity of SRMC-MRC. The PA problem on one subband under SURMC-MRC is proved to be equivalent to SRMC-MRC. Numerical results show that both the SE and fairness performance for SURMC-MRC can strictly approach to those of the duality scheme in the whole signal-to-noise ratio (SNR) region. They prove that NOMA under SRMC-MRC can obtain SE performance advantage in the high SNR region but accompany with some disadvantages in the low SNR region over the orthogonal multiple access system. This conclusion is verified through numerical results under different parameter conditions.; National Science Foundation of China (NSFC) [61471008]; SCI(E); ARTICLE; 5; 537-543; 11
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/472517]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Cai, Wenbo,Chen, Chen,Bai, Lin,et al. Power allocation scheme and spectral efficiency analysis for downlink non-orthogonal multiple access systems[J]. IET SIGNAL PROCESSING,2017.
APA	Cai, Wenbo,Chen, Chen,Bai, Lin,Jin, Ye,&Choi, Jinho.(2017).Power allocation scheme and spectral efficiency analysis for downlink non-orthogonal multiple access systems.IET SIGNAL PROCESSING.
MLA	Cai, Wenbo,et al."Power allocation scheme and spectral efficiency analysis for downlink non-orthogonal multiple access systems".IET SIGNAL PROCESSING (2017).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。