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2004 Annual Report


Head Letter

Chair Letter

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Campus Tansformation

Beyond Imaging

Photonic Biomedicine

Cell Behavior

No-Kill Sensors

Laser Scanning

Hokie Suit

Software Design

 
ECE Research Update

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Cognitive Radio

Network Game Theory

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UWB Lab

High-Temp Sensor

Cell phone detector

Optical Cryptography

Shoot-Through Failures

IPEMs

Die-Attach

R&D 100 Award

Electronic Noses

Distributed Generation

USG

$1000 Elevator

Embedded Systems

Defect Tolerance

Efficiency Tools

Pervasive Networks

Video Networks

Networked Testbeds

Real-Time Solutions

2002/2003 Ph.D.s

2003 Patents

 

 

 

Special Report:
ECEs and Biomedicine

April 2004

 

Maximizing the life ofwireless video sensor networks

Base station placement and network topology are under investigation for their influence on video sensor network lifetime.

“An analysis of power dissipation at the sensor nodes suggests that wireless communication consumes significantly more energy than any other node activity,” said Thomas Hou, who is a co-investigator along with Scott Midkiff on the NSF-funded project. “If we can optimize the communication power consumption behavior of the sensor node, we can extend the network lifetime.”

The team is studying the priority of nodes based on location, base station placement constraints, and dynamic varying network topology. The team also plans to develop a software toolkit for sensor network designers to optimally perform network topology control.

 
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Last updated: Wed, Jun 9, 2004