Analysis and prediction of UAV-assisted mobile edge computing systems

• Published in: Mathematical biosciences and engineering : MBE Vol. 20; no. 12; pp. 21267 - 21291
• Main Authors: Wang, Xiong, Yang, Zhijun, Ding, Hongwei, Guan, Zheng
• Format: Journal Article
• Language: English
• Published: United States AIMS Press 01.01.2023
• Subjects: applied numerical methods; machine learning; mobile edge computing; neural network; partial-differential equations; polling system; uav; partial-differential equations; applied numerical methods; polling system; mobile edge computing; UAV; machine learning; neural network
• ISSN: 1551-0018; 1551-0018
• DOI: 10.3934/mbe.2023941

As the demand for the internet of things (IoT) continues to grow, there is an increasing need for low-latency networks. Mobile edge computing (MEC) provides a solution to reduce latency by offloading computational tasks to edge servers. However, this study primarily focuses on the integration of back propagation (BP) neural networks into the realm of MEC, aiming to address intricate network challenges. Our innovation lies in the fusion of BP neural networks with MEC, particularly for optimizing task scheduling and processing. Firstly, we introduce a drone-assisted MEC model that categorizes computation offloading into synchronous and asynchronous modes based on task scheduling. Secondly, we employ Markov chains and probability-generation functions to accurately compute parameters such as average queue length, cycle time, throughput, and average delay in the synchronous mode. We also derive the first and second-order derivatives of the probability-generation function to support these computations. Finally, we establish a BP neural network to solve for the average queue length and latency in the asynchronous mode. Our results from the BP neural network closely align with the theoretical values obtained through the probability-generation function, demonstrating the effectiveness of our approach. Additionally, our proposed UAV-assisted MEC model outperforms the synchronous mode. Overall, our MEC scheduling approach significantly reduces latency, enhances speed, and improves throughput, with our model reducing latency by approximately 11.72$ \% $ and queue length by around 9.45$ \% $.