Joint Effects of Residual Hardware Impairments and Channel Estimation Errors on SWIPT Assisted Cooperative NOMA Networks

被引：26

作者：

Li, Xingwang ^{[1
]}

Liu, Meng ^{[1
]}

Deng, Chao ^{[1
]}

Zhang, Di ^{[2
,3
]}

Gao, Xiang-Chuan ^{[2
]}

Rabie, Khaled M. ^{[4
]}

Kharel, Rupak ^{[5
]}

机构：

[1] Henan Polytech Univ, Sch Phys & Elect Informat Engn, Jiaozuo 454000, Peoples R China

[2] Zhengzhou Univ, Sch Informat Engn, Zhengzhou 450001, Peoples R China

[3] Seoul Natl Univ, Dept Elect & Comp Engn, Informat Syst Lab, Seoul 08826, South Korea

[4] Manchester Metropolitan Univ, Fac Sci & Engn, Manchester M1 5GD, Lancs, England

[5] Manchester Metropolitan Univ, Dept Comp & Math, Manchester M15 6BH, Lancs, England

来源：

IEEE ACCESS | 2019年 / 7卷

关键词：

NOMA; residual hardware impairments; SWIPT; imperfect successive interference cancellation; NONORTHOGONAL MULTIPLE-ACCESS; M-QAM; PERFORMANCE; INFORMATION; SYSTEMS; IMPACT;

D O I：

10.1109/ACCESS.2019.2942337

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we investigate the effects of residual hardware impairments (RHIs), channels estimation errors (CEEs) and imperfect successive interference cancellation (ipSIC) on the cooperative non-orthogonal multiple access (NOMA) system over Nakagami-m channels, where the amplify-and-forward (AF) relay can harvest energy from the source. The exact expressions for outage probability and ergodic sum rate are derived in closed-form. In addition, the asymptotic outage analyses in the high signal-to-noise (SNR) regime are carried out. The results show that the outage probability exists an error floor due to the existence of CEEs and compared with RHIs, CEEs have a more serious impact on the system outage performance. The close simulation results of Monte Carlo verify the accuracy of our theoretical derivation. Finally, the performance of energy efficiency is examined with RHIs, CEEs and ipSIC.

引用

页码：135499 / 135513

页数：15

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