Evaluation of Roofnet with a Directional Antenna

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Evaluation of Roofnet with a Directional Antenna
Patrick Gemme and Jason Wilson
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Cambridge

• Add map here

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Roofnet Overview

• Not sure if we should put a quick one here.

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Our Setup (office)
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Our setup (Jeep)
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Hardware
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Tools Used For Testing

• wget
• ping
• MediaTracker
• Httperf
• traceroute
• tcpdump
• tetheral

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File Download Results
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MediaTracker Results (fps)
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MediaTracker Results (cont)

• Highest recorded bandwidth on a stream (Matrix
  Reloaded)
• 1,085 kbps
• Main St. East
• Lowest recorded bandwidth on a steam (Matrix
  Reloaded)
• 248 kbps
• Main St. North

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MediaTracker Results (cont)
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Average Stream Bandwidth
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Related Work

• Previous studies only measured speed across known
  nodes, or while the Roofnet traffic was turned
  off.
• Our directional antenna results were not run on a
  simulator
• Our work can be applied to the public and to any
  future volunteers wishing to connect or expand
  Roofnet.

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Conclusions
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Conclusions (cont)
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Future Work

• Actually expand Roofnet (Harvard Square via Mass
  Ave.)
• Create a complete coverage map of Roofnet
• Add a location identifier system for the nodes
  (GPS or even Herecast type)