Terahertz Communication Multi-UAV-Assisted Mobile Edge Computing System

TL;DR

This paper proposes a multi-UAV-assisted mobile edge computing system operating at terahertz frequencies, optimizing various parameters to significantly reduce user service delays in future mobile networks.

Contribution

It introduces a novel THz-enabled multi-UAV MEC system with an iterative PDD algorithm for joint optimization of relay, power, position, and resource allocation.

Findings

The proposed algorithm reduces user service delay compared to baselines.

Joint optimization improves system performance at THz frequencies.

Numerical results validate the effectiveness of the approach.

Abstract

Mobile edge computing (MEC) and terahertz (THz)enabled unmanned aerial vehicle (UAV) communication systems are gaining significant attention for improving user service delays in future mobile networks. This article introduces a novel multi-UAV-aided MEC system operating at THz frequencies to minimize expected user service delays, including communication and computation latency. We address this challenge by jointly optimizing UAV relay selection, power control, positioning, and user-resource association for task offloading and resource allocation. To tackle the problem's complexities, we decompose it into four subproblems, each solved optimally with our proposed algorithm. An iterative penalty dual decomposition (PDD) algorithm approximates the original problem's solution. Numerical results demonstrate that our PDD-based approach outperforms baseline algorithms in terms of expected user service delay.