Performance of content replication in MobiTribe: A distributed architecture for mobile UGC sharing

Authors:
Kanchana Thilakarathna;Henrik Petander;Aruna Seneviratne
Affiliations:
School of Electrical Engineering and Telecommunications, The University of New South Wales, Australia;School of Electrical Engineering and Telecommunications, The University of New South Wales, Australia;School of Electrical Engineering and Telecommunications, The University of New South Wales, Australia
Venue:
LCN '11 Proceedings of the 2011 IEEE 36th Conference on Local Computer Networks
Year:
2011

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Enabling mobile distributed social networking on smartphones

Proceedings of the 15th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems

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Abstract

An increasing portion of traffic in mobile networks comes from users creating content and uploading it to the Internet to share it. The capacity of mobile networks is a limited resource and uploading high resolution content consumes a large part of it. We introduce MobiTribe, a distributed storage cloud consisting of mobile devices for storing the content created on the phones. It can serve requests for content and take advantage of networks with spare capacity to deliver the content at a lower cost. We propose a content distribution and replication algorithm which achieves this goal. The performance of the algorithm is evaluated using empirical data traces of WLAN availability patterns of mobile devices, showing that it is possible to achieve 99.98% availability of a content via WLAN while minimising content distribution to an average of 2.69 replicas.