Outage performance of NOMA-based integrated satellite-terrestrial networks with imperfect CSI

被引：16

作者：

Xie, Shin ^{[1
]}

Zhang, Bangning ^{[1
]}

Guo, Daoxing ^{[1
]}

Ma, Wenfeng ^{[1
]}

机构：

[1] Army Engn Univ, PLA, Nanjing 210007, Jiangsu, Peoples R China

来源：

ELECTRONICS LETTERS | 2019年 / 55卷 / 14期

关键词：

NONORTHOGONAL MULTIPLE-ACCESS; SYSTEMS;

D O I：

10.1049/el.2018.7839

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：

In this Letter, the authors consider the integrated satellite-terrestrial networks with non-orthogonal multiple access (NOMA) scheme, where the satellite communicates with users through a decode-and-forward relay. The impact of imperfect channel state information (CSI) is studied by adopting a pilot-based channel estimation. Closed-form outage probability expressions for each NOMA user are derived, as well as asymptotic expressions at high signal-to-noise ratio region. Simulation is implemented to confirm the validity of theoretical results and the superiority of the proposed NOMA scheme.

引用

页码：793 / 795

页数：3

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