Directional Antenna Control System for Dynamic Tracking and Energy Optimized Data Transfer

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Directional Antenna Control System for Dynamic
Tracking and Energy Optimized Data Transfer

• EE206A
• Richard Pon
• Winston Wu

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Previous Work

• Standard Linux OS
• 802.11b radios
• Microceptor QD2402 directional antennas
• Actuators with one degree of freedom
• Transmitter program for easy ftp file transfer

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Motivation

• Conventional systems
• Lack real time neighbor location information
• Do not take advantage of directional antennas for
  data transmission

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Goals

• Dynamically track all neighbors
• Static, moving, dying, and reappearing nodes
• Transmit files at the most energy efficient
  antenna angle

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Background Research

• Directional Antenna

Radio
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Research Results 1/3
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Research Results 2/3
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Research Results 3/3
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Power Measurements
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Measured and Real Time Data

• Previously collected and current data to
  calculate optimal transmission angles
• Real-time node position updates
• Continuous channel probing

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System Overview and Algorithm
Mobile Nodes
Smart node
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Sweep All Angles
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Sweep All Angles
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Sweep All Angles
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Sweep All Angles
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Sweep All Angles
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Moving Nodes
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Moving Nodes
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Moving Nodes
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Moving Nodes
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Update Nodes
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Update Nodes
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Update Nodes
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Update Nodes
Found New Position!
Old Position
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Transmitting files
destination
Request to Send 001000101
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Transmitting files
destination
Move to Optimal Angle
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Transmitting files
destination
Move to Optimal Angle
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Transmitting files
destination
Transmit!
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Conclusion

• The Optimized System
• Dynamically tracks any number of moving,
  disappearing, and reappearing neighbors
• Transmits information at the most energy
  efficient setting