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

Xingwang Li, Meng Liu, Chao Deng, Di Zhang, Xiang Chuan Gao, Khaled M. Rabie, Rupak Kharel

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)


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.

Original languageEnglish
Article number8844662
Pages (from-to)135499-135513
Number of pages15
JournalIEEE Access
Early online date19 Sep 2019
Publication statusPublished - 1 Oct 2019
Externally publishedYes

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