The Application of NOMA on High-Speed Railway With Partial CSI

被引：2

作者：

Fan, Jingyi ^{[1
]}

Zhang, Jiayi ^{[1
]}

Chen, Shuaifei ^{[1
]}

Zheng, Jiakang ^{[1
]}

Ai, Bo ^{[2
]}

机构：

[1] Beijing Jiaotong Univ, Sch Elect & Informat Engn, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing 100044, Peoples R China

来源：

2019 IEEE 90TH VEHICULAR TECHNOLOGY CONFERENCE (VTC2019-FALL) | 2019年

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

D O I：

10.1109/vtcfall.2019.8891396

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

High-speed railway (HSR) wireless communications are required to support high data rate with seamless connectivity. In this paper, we investigate the outage performance of a downlink single-cell non-orthogonal multiple access (NOMA) based wireless network in HSR scenarios, where it is challenging to derive the perfect channel state information (CSI) and the distribution of the users are quite different from the traditional cellular scenarios. More specifically, the performance of NOMA over composite large-scale and Rician fading channel is studied with two kinds of partial CSI, e.g., imperfect small-scale CSI and no small-scale CSI. We derive the exact closed-form expression of the outage probability based on partial CSI, respectively, by using the Gauss-Chebyshev quadrature method. Finally, simulation results evidence the validity of the derived results and show that the average outage probability of NOMA systems outperforms conventional orthogonal multiple access systems.

引用

页数：5

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