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Sensor Localization for Location-Based Authentication. Valliappan Annamalai And John Quintero. Project Goals. Develop a localization mechanism for use in location-based authentication. Location-based access to computing resources. Focus on determining location indoors. Challenges.

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sensor localization for location based authentication

Sensor Localization for Location-Based Authentication

Valliappan Annamalai

And

John Quintero

project goals
Project Goals
  • Develop a localization mechanism for use in location-based authentication.
  • Location-based access to computing resources.
  • Focus on determining location indoors.
challenges
Challenges
  • Indoor signal propagation subject to suffers from multipath propagation, shadowing and scattering.
  • Use scene analysis by constructing a signal-strength map of the lab.
  • Antenna orientation and pedestrian traffic cause local variation in signal strength.
project applications
Project Applications
  • Badge
  • Base Station
  • Serial Forwarder
  • Tracker Sender
  • Tracker Server
example architecture
Example Architecture
  • Six base stations are used to capture signal strength information from a badge, which is compared to a pre-compiled mapping.
    • B: badge broadcasts id to establish its location.
    • BS: wireless base station captures badge signal strength, forwards to base station.

BS

BS

BS

B

BS

BS

BS

application messaging
Application Messaging

Tracker Sender

Tracker Server

Badge

Base Station

W/L Message

With Bdg ID

Bdg Msg With

BS ID and Signal

Strength

Forwards the

Messages it

Receives

1 Sec

UDP data packets with

BS message

W/L Message

With Bdg ID

Serial Forwarder

Second PC

One PC