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Joint Computation Offloading and Bandwidth Assignment in Cloud-Assisted Edge Computing
- Source :
- IEEE Transactions on Cloud Computing. 10:451-460
- Publication Year :
- 2022
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2022.
-
Abstract
- 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 paper, 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.
- Subjects :
- Mobile edge computing
Computer Networks and Communications
business.industry
Computer science
Distributed computing
Computation
020206 networking & telecommunications
Cloud computing
02 engineering and technology
Computer Science Applications
Hardware and Architecture
Server
0202 electrical engineering, electronic engineering, information engineering
Bandwidth (computing)
Computation offloading
020201 artificial intelligence & image processing
Performance improvement
business
Software
Edge computing
Information Systems
Subjects
Details
- ISSN :
- 23720018
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Cloud Computing
- Accession number :
- edsair.doi...........9ae82aaafdc6e02299af91185d637435