Date Added: Jun 2012
Location-specific Internet services are predicated on the ability to identify the geographic position of IP hosts accurately. Fundamental to current state-of-the-art geolocation techniques is reliance on heavyweight traceroute-like probes that put a significant traffic load on networks. In this paper, the authors introduce a new lightweight approach to IP geolocation that they call Posit. This methodology requires only a small number of delay measurements conducted to end host targets in conjunction with a computationally-efficient statistical embedding technique. They demonstrate that Posit performs better than all existing geolocation tools across a wide spectrum of measurement infrastructures with varying geographic densities.