Energy Efficient Non-Orthogonal Multiple Access for Machine-to-Machine Communications

被引：41

作者：

Yang, Zhaohui ^{[1
]}

Xu, Wei ^{[1
]}

Xu, Hao ^{[1
]}

Shi, Jianfeng ^{[1
]}

Chen, Ming ^{[1
]}

机构：

[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2017年 / 21卷 / 04期

关键词：

M2M; resource allocation; NOMA; energy minimization; CELLULAR NETWORKS;

D O I：

10.1109/LCOMM.2016.2641423

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This letter investigates an uplink energy minimization problem for machine-to-machine communications with non-orthogonal multiple access. To solve this non-convex problem, we first prove that transmitting with minimum rate and full time is optimal. Then, the original problem can be transformed into an equivalent convex problem, which can be effectively solved by the proposed optimal power control and time scheduling scheme. Numerical results show that the proposed scheme achieves the optimal energy consumption.

引用

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页码：817 / 820

页数：4

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