Performance Analysis of NOMA-Based Cooperative Networks with Relay Selection

被引：0
|
作者：
Huang, Ronglan [1 ]
Wan, Dehuan [2 ]
Ji, Fei [3 ,4 ]
Qing, Hua [3 ]
Li, Jie [3 ]
Yu, Hua [3 ]
Chen, Fangjiong [3 ]
机构：
[1] Wuzhou Univ, Guangxi Coll & Univ Key Lab Image Proc & Intellig, Wuzhou 543002, Peoples R China
[2] Guangdong Univ Finance, Guangzhou 510521, Peoples R China
[3] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Guangdong, Peoples R China
[4] Minist Nat Resources, Key Lab Marine Environm Survey Technol & Applicat, Guangzhou 510300, Peoples R China
来源：
CHINA COMMUNICATIONS | 2020年 / 17卷 / 11期
基金：
中国国家自然科学基金;
关键词：
non-orthogonal multiple access (NOMA); decode-and-forward (DF); amplify-and-forward (AF); relay selection; ergodic sum-rate; outage probability; NONORTHOGONAL MULTIPLE-ACCESS; CHALLENGES; OPPORTUNITIES;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
Non-orthogonal multiple access (NOMA) technique is an expert on channel differences exploiting. In this paper, a dual-hop NOMA-based cooperative relaying network where a best relay is selected as an active node to accomplish the communication between a source and a destination is discussed. We assume that both decode-and-forward (DF) and amplify-and-forward (AF) protocols are applied to the selected relay. The metrics that ergodic sum-rate and outage probability are investigated, and the closed-form expressions of the latter for DF and AF protocols are derived. Numerical and simulation results are conducted to verify the validity of the theoretical analysis, in which we can see that the NOMA based DF relaying is better than the NOMA based AF relaying and other existing NOMA-based cooperative communication schemes.
引用
收藏
页码：111 / 119
页数：9
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