Publication Date

2021

Journal or Book Title

IEEE ACCESS

Abstract

Multi-access Edge Computing (MEC) is recognised as a solution in future networks to offload computation and data storage from mobile and IoT devices to the servers at the edge of mobile networks. It reduces the network traffic and service latency compared to passing all data to cloud data centers while offering greater processing power than handling tasks locally at terminals. Since MEC servers are scattered throughout the radio access network, their computation capacities are modest in comparison to large cloud data centers. Therefore, offloading decision between MEC and cloud server should minimize the usage of the resources while maximizing the number of accepted delay critical requests. In this work we formulate the joint optimization of communication and computation resources allocation for computation offloading (CO) requests with strict latency constraints. We show that the global optimization problem is NP-hard and propose an efficient heuristic solution based on the single user optimal solution. Simulation results are presented to show the effectiveness of the proposed algorithm, compared to optimal and baseline solution where tasks are allocated in the order of arrival, with different system parameters. They show that our algorithm performs close to the optimal in terms of resource utilization and outperforms the baseline algorithm in terms of acceptance rate.

ISSN

2169-3536

ORCID

Kovacevic, Ivana/0000-0002-6188-3711

DOI

https://doi.org/10.1109/ACCESS.2021.3071848

Volume

9

License

UMass Amherst Open Access Policy

Funder

Academy of Finland 5GEAR project; Academy of Finland 6Genesis Flagship [318927]; Academy of Finland Digihealth project; NSF SII National Center for Wireless Spectrum Research [NSF 2037782]

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