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The Moitree middleware for distributed mobile-cloud computing
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DOI：10.1016/j.jss.2019.07.089.png)
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Abstract
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Commonly, mobile cloud computing assumes that each mobile device of a user is paired with a user controlled surrogate in the cloud to overcome resource limitations on mobiles. Our Avatar platform lever-ages this model to support efficient distributed computing over mobile devices. An avatar is a per-user, always-on software entity that resides in the cloud and acts as the surrogate of the mobile. Mobile-avatar pairs participate in distributed computing as a unified computing entity in such a way that the workload and the demand for resources on the mobiles remain low. This paper presents Moitree, the middleware of the Avatar platform, which provides a common programming and execution framework for mobile distributed apps. Moitree allows the components of a distributed app to execute seamlessly over a set of mobile-avatar pairs, with the provision of offloading computation and communication to the cloud. The programming framework has two key features: user collaborations are modeled using context-aware group semantics - groups are created dynamically based on context; data communication among group members is offloaded to the cloud through high-level communication channels. A prototype of Moitree, along with several apps, has been implemented and evaluated on Android devices and on a cloud running Android x86 avatars. (C) 2019 Elsevier Inc. All rights reserved.
Keywords:
Mobile cloud computings
Mobile apps
Middleware
Distributed systems
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