arrow
Return

Joint Computation Offloading and Bandwidth Assignment in Cloud-Assisted Edge Computing

delete2022-01-01
delete33
PRE
AI
K
Kai Guo *
M
Mingcong Yang
Y
Yongbing Zhang
J
Jiannong Cao
DOI:10.1109/TCC.2019.2950395delete
deleteOriginal
deleteOriginal request for help
deleteShare
deleteSave
Abstract

Abstract

En 中文
Offloading computation based on mobile edge computing paradigms can augment the computational capabilities of resource-scarce mobile devices. However, the capacity limitations of edge servers constrain the performance improvement achieved through computation offloading. In this article, we consider a three-tier computation offloading schema with multiple users, edge servers, and cloud servers. Computation can be offloaded from mobile devices to edge servers or can be further offloaded to remote cloud servers if necessary. Since a number of mobile devices connected to edge servers will share a common wireless communication network, which may contain both uplink and downlink channels, the assignment of bandwidth assignment the channels also constrains the performance improvement of computation offloading. In this paper, the problems of how to determine the offloading strategy and of how to assign the bandwidth are jointly studied and formulated as a programming problem to minimize the average application response time. We analyze the joint problem and further transform it into a piecewise convex programming problem. We propose an efficient algorithm that can find the optimal solution. Extensive experiments demonstrate that our algorithm significantly outperforms previous algorithms. The experimental results also show that the performance of our algorithm is highly robust.
Keywords:
Mobile edge computing
computation offloading
bandwidth assignment
AI Summary

AI Summary

Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

I
IEEE Transactions on Cloud Computing
IF:
5
Papers:
1.8K
Citations:
4.3K

Organization

H
hong kong polytechnic university
Scholars:
3.0W
Papers: 4.1W
Citations: 921
U
University of Tsukuba
Scholars:
1.8W
Papers: 1.5W
Citations: 1.7W