Secure Computation Efficiency Maximization in NOMA-Enabled Mobile Edge Computing Networks

被引：24
|
作者：
Lin, Hongcheng [1 ]
Cao, Ye [1 ]
Zhong, Yijie [1 ]
Liu, Pengpeng [1 ]
机构：
[1] Nanchang Univ, Sch Informat Engn, Nanchang 330031, Jiangxi, Peoples R China
来源：
IEEE ACCESS | 2019年 / 7卷
关键词：
Mobile edge computing; non-orthogonal multiple access; partial offloading; physical layer security; computation efficiency; sequential fractional programming; NONORTHOGONAL MULTIPLE-ACCESS; RESOURCE-ALLOCATION; ARTIFICIAL NOISE;
D O I：
10.1109/ACCESS.2019.2925808
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, a computation efficiency maximization problem is studied in a multi-user non-orthogonal multiple access (NOMA) enabled mobile edge computing (MEC) networks. Physical layer security is used to prevent multi-user computing tasks from eavesdropping. The secure computation efficiency optimization problem is formulated by optimizing the transmission power and central processing unit (CPU) frequency jointly in the NOMA-enabled MEC networks. The problem is non-concave and challenging to solve, and a low complexity sequential fractional programming is proposed to solve this problem. The numerical results are provided to verify that the proposed scheme is superior to the traditional scheme in terms of the secure computation efficiency and our designed iteration algorithm's efficiency is verified.
引用
收藏
页码：87504 / 87512
页数：9
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