CIRCA: OFFLOADING COLLABORATIVELY IN THE SAME VICINITY WITH IBEACONS

MPhil Thesis Defence


Title: "CIRCA: OFFLOADING COLLABORATIVELY IN THE SAME VICINITY WITH 
IBEACONS"

By

Miss Xueling LIN


Abstract

Code offloading to remote infrastructures has been a common practice for 
mobile users who seek extra power or computing resources to perform 
computation-intensive tasks. Existing works, however, have so far mainly 
focused on code offloading from a single mobile device to remote cloud 
servers, which restricts the potential of code offloading only to devices 
with available Internet access.

In this paper, we propose Circa, a new framework that demonstrates the 
feasibility of code offloading among multiple mobile devices in close 
proximity to one another, leveraging the presence of iBeacons. Our 
objective is to eliminate the costs incurred by running virtual machine 
instances in the cloud, and the need to connect remotely to the cloud as 
well. With the assistance of iBeacons, devices in the same vicinity can 
discover and support one another through collaborative code offloading 
with short-range communication, obviating the need for centralized 
servers. We have proposed algorithms to select reliable collaborators 
among the mobile devices in the same vicinity and disseminate the 
computation-intensive tasks among them efficiently in a fair fashion. We 
have implemented a prototype of the Circa framework on the iOS platform 
and validated its feasibility using iOS devices. According to our 
experimental results, by involving the nearby mobile devices as 
collaborators, Circa is capable of reducing the total execution time of an 
offloaded task substantially, while preserving satisfactory performance of 
the mobile application.


Date:			Tuesday, 4 August 2015

Time:			2:00pm - 4:00pm

Venue:			Room 3494
 			Lifts 25/26

Committee Members:	Prof. Bo Li (Supervisor)
 			Dr. Lei Chen (Chairperson)
 			Dr. Kai Chen


**** ALL are Welcome ****