Outage Performance of NOMA in Cooperative Cognitive Radio Networks With SWIPT

被引：22

作者：

Yu, Yuehao ^{[1
]}

Yang, Zheng ^{[1
]}

Wu, Yi ^{[1
]}

Hussein, Jamal Ahmed ^{[2
]}

Jia, Wen-Kang ^{[1
]}

Dong, Zhicheng ^{[3
]}

机构：

[1] Fujian Normal Univ, Fujian Prov Engn Technol Res Ctr Photoelect Sensi, Key Lab OptoElect Sci & Technol Med, Minist Educ, Fuzhou 350007, Fujian, Peoples R China

[2] Minist Transportat & Commun KRG, Sulaimaniyah 46001, Iraq

[3] Tibet Univ, Sch Engn, Lhasa 85000, Peoples R China

来源：

IEEE ACCESS | 2019年 / 7卷

基金：

中国国家自然科学基金;

关键词：

Non-orthogonal multiple access; cognitive radio network; decode-and-forward; simultaneous wireless information and power transfer; outage probability; diversity gain; NONORTHOGONAL MULTIPLE-ACCESS; 5G SYSTEMS; DESIGN;

D O I：

10.1109/ACCESS.2019.2936321

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper considers the application of non-orthogonal multiple access (NOMA) into cooperative cognitive radio (CR) networks with simultaneous wireless information and power transfer (SWIPT). For NOMA in cooperative CR networks with SWIPT, the cognitive relay harvests the transmission power from the secondary transmitter with power splitting scheme, while the fixed power allocation scheme is used for the NOMA protocol. The closed-form analytical expression of the overall outage probability for the proposed networks is derived, as well as its diversity order at high signal-to-noise ratio (SNR) region is investigated. Furthermore, compared to OMA in cooperative CR networks with SWIPT, the proposed scheme can always achieve the same diversity order, but lower overall outage performance. Compared with NOMA in cooperative CR networks using its own battery for transmission, the SWIPT NOMA in cooperative CR networks will lead to losing a little of the overall outage performance, but without losing the diversity order.

引用

页码：117308 / 117317

页数：10

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