A Tree Topology Power Allocation Algorithm for Non-Orthogonal Multiple Access System in 5G System

	A Tree Topology Power Allocation Algorithm for Non-Orthogonal Multiple Access System in 5G System
	Lin, Ying 1,2; Li, Suoping 3,4; Duo, Peng 2; Xu, Yamei 2
	2017
关键词	Non-orthogonal multiple access System capacity Power allocation Tree topology power allocation
页码	2777-2781
英文摘要	Due to its superior spectral efficiency and higher system capacity, non-orthogonal multiple access (NOMA) has recently become a promising candidate scheme in 5G systems. In this paper, we discussed the basic theory of NOMA system first of all. Then, we studied the systems capacity optimization problem of NOMA system under the constraints of total transmit power and the minimum rate of the weaker user. Then a tree topology power allocation algorithm is discussed, which achieves the same performance as the FSPA method. but its computation complexity decreases from exponential to constant. The results of numerical simulation showed proposed algorithm has lower computational complexity and can realize higher system capacity. Meanwhile, higher system capacity can be achieved through adjusting the power allocation factor a in FPA algorithm.
会议录	2017 13TH INTERNATIONAL CONFERENCE ON NATURAL COMPUTATION, FUZZY SYSTEMS AND KNOWLEDGE DISCOVERY (ICNC-FSKD)
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
语种	英语
资助项目	National Natural Science Foundation of China[61663024][61562058] ; Higher Education Research Project of Gansu Province[2016B-025]
WOS研究方向	Computer Science
WOS记录号	WOS:000437355302127
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36212]
专题	计算机与通信学院电气工程与信息工程学院
通讯作者	Lin, Ying
作者单位	1.Lanzhou Univ Technol, Coll Elect & Informat Engn, Lanzhou, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou, Gansu, Peoples R China 3.Lanzhou Univ Technol, Coll Elect & Informat Engn, Lanzhou, Gansu, Peoples R China 4.Lanzhou Univ Technol, Sch Sci, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Lin, Ying,Li, Suoping,Duo, Peng,et al. A Tree Topology Power Allocation Algorithm for Non-Orthogonal Multiple Access System in 5G System[C]. 见:.