Energy Efficiency and Spectral Efficiency Tradeoff for Multicarrier NOMA Systems with User Fairness



Zuo, Yan, Zhu, Xu ORCID: 0000-0002-7371-4595, Jiang, Yufei, Wei, Zhongxiang, Zeng, Haiyong and Wang, Tong
(2018) Energy Efficiency and Spectral Efficiency Tradeoff for Multicarrier NOMA Systems with User Fairness. In: 2018 IEEE/CIC International Conference on Communications in China (ICCC), 2018-8-16 - 2018-8-18, Beijing, China.

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Abstract

We propose a novel low-complexity resource allocation scheme to provide a tradeoff between energy efficiency (EE) and spectral efficiency (SE) for multicarrier non-orthogonal multiple access (NOMA) systems with the constraint of user fairness. The proposed optimization approach provides high degree of freedom, as the tradeoff of EE and SE can be optimal by assigning their corresponding weights. Also, a closed-form expression is derived for subchannel power allocation with user fairness, requiring no high-complexity search. A suboptimal power allocation approach is proposed on each subchannel for NOMA user pairing. Numerical results show that the proposed NOMA system provides higher EE and SE than the state-of-Art methods, while requiring low complexity.

Item Type: Conference or Workshop Item (Unspecified)
Depositing User: Symplectic Admin
Date Deposited: 02 May 2019 14:25
Last Modified: 19 Jan 2023 00:52
DOI: 10.1109/iccchina.2018.8641176
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3039328