Outage Probability Analysis and Optimization in Downlink NOMA Systems with Cooperative Full-duplex Relaying

被引：0
|
作者：
Zhang, Lin [1 ]
Xiao, Ming [1 ,2 ]
Liu, Jiaqi [1 ]
Wu, Gang [1 ]
Lin, Dengsheng [1 ]
Li, Shaoqian [1 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Key Lab Sci & Technol Commun, Chengdu, Sichuan, Peoples R China
[2] KTH, Royal Inst Technol, Sch Elect Engn, Stockholm, Sweden
来源：
2017 IEEE 86TH VEHICULAR TECHNOLOGY CONFERENCE (VTC-FALL) | 2017年
基金：
中国国家自然科学基金;
关键词：
Cooperative relaying; full-duplex; NOMA; outage probability; power allocation; 5G;
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：
We study a downlink non-orthogonal multiple access (NOMA) system with cooperative full-duplex relaying, where the near user in terms of the base station (BS) is enabled to act as a full-duplex relay for the far user. In particular, we first derive the outage probability with closed-form expressions when the power allocations at the BS and relay (or the near user) are fixed. Then, we analytically obtain the optimal power allocations with closed-form expressions at the BS and relay to minimize the outage probability. Numerical results validate the correctness of the theoretical analysis and demonstrate the advantages of the proposed algorithms over the state of arts.
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页数：5
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