Research Repository

Energy-efficient and network-aware offloading algorithm for mobile cloud computing

Sarathchandra Magurawalage, Chathura M and Yang, Kun and Hu, Liang and Zhang, Jianming (2014) 'Energy-efficient and network-aware offloading algorithm for mobile cloud computing.' Computer Networks, 74 (PB). pp. 22-33. ISSN 1389-1286

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We propose a new system architecture for mobile cloud computing (MCC) that includes a middle layer sitting between mobile devices and their cloud infrastructure or clones. This middle layer is composed of cloudlets and is thus called a cloudlet layer. Cloudlets are deployed next to IEEE 802.11 access points and serve as a localized service point in close proximity to mobile devices to improve the performance of mobile cloud services. On top of this new architecture, an offloading algorithm is proposed with the main aim of deciding whether to offload to a clone or a cloudlet. The decision-making takes into consideration the energy consumption for task execution and the network status while satisfying certain task response time constraints. We also introduce a data caching mechanism at cloudlets to further improve the overall MCC performance. Simulation results demonstrate the effectiveness and efficiency of the proposed system architecture and offloading algorithm in terms of response time and energy consumption.

Item Type: Article
Uncontrolled Keywords: Mobile cloud computing; Mobile clone; Mobile cloudlet; Offloading algorithm; Energy efficiency
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health
Faculty of Science and Health > Computer Science and Electronic Engineering, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 05 Dec 2014 14:29
Last Modified: 15 Jan 2022 00:35

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