Delay Minimization for NOMA-MEC Offloading
Delay Minimization for NOMA-MEC Offloading
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DOI：
10.1109/lsp.2018.2876019
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发表时间：
2018-07
影响因子：
3.9
通讯作者：
Z. Ding;D. Wing;Kwan Ng;R. Schober;H. Poor
中科院分区：
文献类型：
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作者：
Z. Ding;D. Wing;Kwan Ng;R. Schober;H. Poor
这封信考虑了非正交多址辅助移动边缘计算（NOMA-MEC）卸载延迟的最小化。通过将延迟最小化问题转化为分数规划的形式，提出了两种分别基于丁克尔巴赫方法和牛顿方法的迭代算法。证明了两种方法的最优性并比较了它们的收敛性。此外，还建立了用于 MEC 卸载的三种可能模式（即正交多址、纯 NOMA 和混合 NOMA）之间的选择标准。
This letter considers the minimization of the offloading delay for nonorthogonal multiple access assisted mobile edge computing (NOMA-MEC). By transforming the delay minimization problem into a form of fractional programming, two iterative algorithms based on, respectively, Dinkelbach's method and Newton's method are proposed. The optimality of both methods is proved and their convergence is compared. Furthermore, criteria for choosing between three possible modes, namely orthogonal multiple access, pure NOMA, and hybrid NOMA, for MEC offloading are established.