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With the ever expanding mobile device ecosystem, mobile users face a vast and constantly growing application pool. At the same time, in our daily life, waiting occurs regularly at different places such as shopping centers, where mobile applications become the de facto means to consume the time periods. In this paper, we propose a novel application recommendation system that utilizes human activity...
Opportunistic networks, as a key enabling technology for pervasive computing, have attracted enormous attentions from researchers recently. In this paper, we focus on designing and analyzing routing schemes in our new place-based opportunistic networks, in which data exchanges only take place at different public places. Basically, routing schemes determine how data travel from source to destination...
Opportunistic networks exploits opportunistic contacts among mobile devices to facilitate data forwarding. In this paper, we focus on visited places of the mobiles and resulting opportunistic yet relative stable contacts within the places. We focus on investigating the capacity of this place based opportunistic network. We reveal that the capacity of the network is mainly determined by two factors,...
Opportunistic networks are characterized by intermittent connectivity among mobile devices that occurs during their opportunistic contacts. With the increasing number of capable wireless devices and hence increasing potential formation of opportunistic networks, enabling applications over opportunistic networks has become critical. In this paper, we design and analyze a mobile file sharing system...
Localization is one of the key enabling technologies for wireless services now penetrating into everyday life. Unfortunately, existing localization schemes are often energy inefficient (such as GPS), or inaccurate (based on signal-distance conversion), or labor intensive (requiring periodic fingerprinting). In this paper we propose a novel localization scheme termed COAL, for COntext Aware Localization,...
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