Overlay Structure for Large Scale Content Sharing: Leveraging Geography as the Basis for Routing Locality

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Executive Summary

In this paper the authors place the arguments on two related issues in the design of generalized structured peer-to-peer overlays. First, they argue that for the large-scale content-sharing applications, lookup and content transport functions need to be treated separately. Second, to create a location-based routing overlay suitable for content sharing and other applications, they argue that off-the-shelf geographic coordinates of Internet-connected hosts can be used as a basis. They then outline the design principles and present a design for the generalized routing overlay based on adaptive hierarchical partitioning of the geographical space.

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