Estimation of Internet Node Location by Latency Measurements - The Underestimation Problem

Dan Komosny, Miroslav Voznak, Kathiravelu Ganeshan, Hira Sathu


In this paper we deal with discovering a geographic location of a node in the Internet. Knowledge of location is a fundamental element for many location based applications and web services. We focus on location finding without any assistance of the node being located - client-independent estimation. We estimate a location using  communication latency measurements between nodes in the Internet. The latency measured is converted into a geographic distance which is used to derive a location by the multilateration (triangulation) principle. We analyse the latency-to-distance conversion with a consideration of location underestimation which is a product of multilateration failure. We demonstrate that location underestimations do not appear in experimental conditions. However with a real-world scenario, a number of devices cannot be located due to underestimations. Finally, we propose a modification to reduce the number of underestimations in real-world scenarios.



geographical; location; geolocation; IP address; Internet; latency; measurement; multilateration; triangulation; PlanetLab

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Print ISSN: 1392-124X 
Online ISSN: 2335-884X