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Energy-Efficient Mobile Edge Computing under Delay Constraints - 2021

Energy-Efficient Mobile Edge Computing under Delay Constraints

Research Area:  Edge Computing

Abstract:

Green communication is one of the key goals of the beyond 5G networks. However, as more and more delay sensitive applications emerge, the contradiction between task delay requirement and energy conservation becomes more and more prominent on the device side. This paper focuses on a mobile edge computing system where local computing capability and edge computing capability are both limited, which may lead to task discarding due to delay violation. An energy consumption minimization problem is first formulated under the binary offloading and the partial offloading modes. Then a low-complexity heuristic scheme and a Lagrange dual scheme are proposed to jointly optimize the task scheduling and resource allocation under those two modes respectively. Particularly, a task processing priority model is designed to effectively reduce the number of discarded tasks and improve the service performance of the MEC server. The effectiveness of the proposed schemes is validated by extensive simulations with comparison to other baseline schemes.

Keywords:  

Author(s) Name:  Zhidu Li; Ni Zhu; Dapeng Wu; Honggang Wang; Ruyan Wang

Journal name:  IEEE Transactions on Green Communications and Networking

Conferrence name:  

Publisher name:  IEEE

DOI:  10.1109/TGCN.2021.3138729

Volume Information:  Page(s): 1 - 1