A search-based network architecture for content-oriented and opportunistic communication

We describe Haggle, a network architecture that dissemi-nates content among mobile users based on the match be-tween their interests and the metadata of content. Central to Haggle’s design is a set of search based networking primitives, which draw inspiration from web and desk-top searching. These primitives enable, for instance, con-tent to be disseminated in order of relevance to receivers, and to be asynchronously demultiplexed to applications. Other areas in which they enable novel solutions and ab-stractions include: naming and addressing, resolution, forwarding, and resource management. We describe how this is accomplished, and then illustrate the feasibility of our architecture through an implementation and evalua-tion. The results show that Haggle scales to hundreds of mobile devices, and thousands of pieces of content.