UbiStore: Ubiquitous and Opportunistic Backup Architecture

Abstract

This paper presents UbiStore, a novel distributed and opportunistic backup architecture, where mobile devices backup their data over short-range, ad-hoc wireless links to other devices encountered as a result of user mobility. We base our design on the assumption that typical user mobility patterns will incur some repetitive encounters in the course of daily life (public transports, home/office) which can facilitate the recovery of data in case of a device failure. This paper presents the UbiStore design, an evaluation framework, and early results