Proportional Fairness-Based User Pairing and Power Allocation for Non-Orthogonal Multiple Access

被引：0
|
作者：
Liu, Fei [1 ]
Maehoenen, Petri [1 ]
Petrova, Marina [1 ]
机构：
[1] Rhein Westfal TH Aachen, Inst Networked Syst, Kackertstr 9, D-52072 Aachen, Germany
来源：
2015 IEEE 26TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC) | 2015年
关键词：
Non-orthogonal multiple access; user pairing; power allocation; proportional fairness;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The non-orthogonal multiple access (NOMA) has been investigated recently as a candidate radio access technology in future mobile networks. It is able to implement power-domain user multiplexing based on successive interference cancellation (SIC). This paper focuses on the user pairing and power allocation problem in the 2-user NOMA system. The optimal solution in closed-form is derived with the proportional fairness objective and is used for the design of the user pair power allocation scheme. The prerequisites for user pairing are also formulated in order to avoid unnecessary comparison of candidate user pairs. The performance of the proposed scheme is evaluated by system level simulations and results in higher gains than the search based transmission power allocation. On the other hand, the computational complexity is reduced by the proposed scheme effectively.
引用
收藏
页码：1127 / 1131
页数：5
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