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The wide use of mobile devices gives rise to many novel network applications, which require an efficient communication substrate. These networks, which are comprised solely of human-carried mobile devices, are called HUman NETworks (HUNETs). In this paper, the authors present ZigZag, a Content-Based Publish/Subscribe (CBPS) architecture for HUNETs. The authors deem that CBPS is a natural fit for HUNETs for its inherent anonymity, scalability, and flexibility. However, existing CBPS systems are designed for the Internet, consuming resources beyond the capacity of mobile devices. Additionally, they do not consider user mobility.
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