Joint interest- and locality-aware content dissemination in social networks

Social groups are typically formed by nodes that share common interests (interest-induced social groups), with no implication on the geographic location of these nodes. In addition to such groups, mobile nodes form groups also as they move around and come to a locality where they can establish communication with other nodes (locality-induced social groups). This paper investigates the intermingling of these distinct types of social groups and proposes an approach that can enhance content dissemination in the presence of such groups. Specifically, we introduce a framework for modelling this environment (both, the nodes´ dynamic association to such groups and the dynamic usability of the content) and explore the conditions under which a proposed cooperative strategy can enhance the content dissemination process compared to a selfish one. This work basically explores how mobility and cooperative content storage strategies can help bridge interest-induced social groups, or how the joint association of nodes with interest- and locality-induced social groups can be exploited to enhance content dissemination.