Fairness-Aware Energy-Efficient Power Allocation for Uplink NOMA Systems With Imperfect SIC
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作者
Wang, Kaijie; Zhou, Ting; Xu, Tianheng; Huang, Yongming; Hu, Honglin; Tao, Xiaoming
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刊物名称
IEEE WIRELESS COMMUNICATIONS LETTERS
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年、卷、文献号
2023, 12, 2162-2345
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关键词
Wang, Kaijie; Zhou, Ting; Xu, Tianheng; Huang, Yongming; Hu, Honglin; Tao, Xiaoming
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摘要
Non-orthogonal multiple access (NOMA) is a promising technology for the next generation of wireless networks. However, maximizing energy efficiency (EE) for NOMA systems may cause unbearable near-far unfairness. In this letter, a novel fairness-aware energy-efficient power allocation for uplink NOMA systems with imperfect successive interference cancellation (SIC) is proposed. We first introduce a new metric called geometric energy efficiency (GEE), then a dynamic power allocation scheme is developed by maximizing the GEE. Numerical results show that the proposed power allocation scheme achieves at least a 15.1% EE gain over benchmarks while also providing better or comparable fairness performance.
