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The Moitree middleware for distributed mobile-cloud computing

2019; Elsevier BV; Volume: 157; Linguagem: Inglês

10.1016/j.jss.2019.07.089

1873-1228

Hillol Debnath, Mohammad Arifin Rahman Khan, Nafize Rabbani Paiker, Xiaoning Ding, Narain Gehani, Reza Curtmola, Cristian Borcea,

Cloud Computing and Resource Management

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 leverages 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.