Dynamic Task Offloading for NOMA-Enabled Mobile Edge Computing with Heterogeneous Networks
Dynamic Task Offloading for NOMA-Enabled Mobile Edge Computing with Heterogeneous Networks
复制标题
通过异构网络实现支持 NOMA 的移动边缘计算的动态任务卸载
DOI:
10.1155/2022/7258236
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发表时间:
2022-09
影响因子:
--
通讯作者:
Jiwei Huang
中科院分区:
文献类型:
--
作者:
Kaixin Li;Jiajie Xu;Hua Xing;Ying Chen;Jiwei Huang
With the rapid development of the Internet of Things (IoT), more and more computation-intensive tasks are generated by IoT devices. Due to their own limitations, IoT devices cannot process all tasks locally, and some tasks need to be offloaded to edge servers for processing. In addition, nonorthogonal multiple access (NOMA) technology allows multiple IoT devices to share the same frequency resource. IoT devices can use NOMA technology to transmit data to increase the data transmission rate. In this article, we study the problem of NOMA-enabled dynamic task offloading in heterogeneous networks. We formulate a stochastic optimization problem to minimize system energy consumption. Using stochastic optimization techniques, we transform this problem into a deterministic optimization problem and decompose it into five sub-problems to solve. At the same time, we propose a NOMA-enabled dynamic task offloading (NDTO) algorithm. Then, we mathematically analyze the performance of the NDTO algorithm. We conduct a series of parameter analysis experiments and comparative experiments, and the results verify the performance of the NDTO algorithm.
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