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On profiling mobility and predicting locations of wireless users

Published: 26 May 2006 Publication History

Abstract

In this paper, we analyze a year long wireless network users' mobility trace data collected on ETH Zurich campus. Unlike earlier work in [4,18], we profile the movement pattern of wireless users and predict their locations. More specifically, we show that each network user regularly visits a list of places such as a building (also referred to as "hubs") with some probability. The daily list of hubs, along with their corresponding visit probabilities, are referred to as a mobility profile. We also show that over a period of time (e.g., a week), a user may repeatedly follow a mixture of mobility profiles with certain probabilities associated with each of the profiles. Our analysis of the mobility trace data not only validate the existence of our so-called sociological orbits [8], but also demonstrate the advantages of exploiting it in performing hub-level location predictions In particular, we show that such profile based location predictions are more precise than common statistical approaches based on observed hub visitation frequencies alone.

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      cover image ACM Conferences
      REALMAN '06: Proceedings of the 2nd international workshop on Multi-hop ad hoc networks: from theory to reality
      May 2006
      142 pages
      ISBN:1595933603
      DOI:10.1145/1132983
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Published: 26 May 2006

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      Author Tags

      1. WLAN mobility trace analysis
      2. location prediction
      3. mobile wireless networks
      4. mobility profiles
      5. sociological orbits

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