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- Title
Circa: collaborative code offloading among multiple mobile devices.
- Authors
Lin, Xueling; Jiang, Jingjie; Li, Calvin Hong Yi; Li, Bo; Li, Baochun
- Abstract
For mobile users who seek extra power or computing resources to perform computation-intensive tasks, code offloading to remote infrastructures is a promising solution. However, most of the recent works mainly target on code offloading from single mobile devices to remote cloud servers, which restricts the potential of offloading only to devices with available Internet access. Moreover, offloading to remote cloud computing platforms is not always guaranteed to be time efficient and energy conserving. In this paper, we propose Circa, a framework that demonstrates the feasibility of code offloading among multiple mobile devices in the same vicinity, leveraging the presence of iBeacons. Circa eliminates the costs incurred by connecting to a remote cloud and running virtual machine instances in the cloud. With iBeacons, neighbouring devices can discover and support one another through collaborative code offloading with short-range communication, obviating the need for centralized servers. We also propose task allocation algorithms to select reliable collaborators among nearby mobile devices and disseminate the computation intensive tasks among them efficiently in a fair fashion. The performance of the task allocation algorithm is evaluated based on three different mobility models. We also implement a prototype of the Circa framework on an iOS platform and validate its feasibility and efficiency using iOS devices. According to the experimental results, by involving nearby mobile devices as collaborators, Circa is able to reduce the total execution time of an offloaded task substantially, while preserving the satisfactory performance of mobile applications.
- Subjects
REMOTE computing; INTERNET access; COMPUTING platforms; POWER resources; MOBILE apps; VIRTUAL machine systems
- Publication
Wireless Networks (10220038), 2020, Vol 26, Issue 2, p823
- ISSN
1022-0038
- Publication type
Article
- DOI
10.1007/s11276-018-1824-y