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2004 Annual Report

Head Letter

Chair Letter

Campus Tansformation

Beyond Imaging

Photonic Biomedicine

Cell Behavior

No-Kill Sensors

Laser Scanning

Hokie Suit

Software Design

ECE Research Update

Research News

Cognitive Radio

Network Game Theory

Hardware Middleware


High-Temp Sensor

Cell phone detector

Optical Cryptography

Shoot-Through Failures



R&D 100 Award

Electronic Noses

Distributed Generation


$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

Networked testbeds

Above left: Luiz DaSilva and Ph.D. student Vivek Srivastava configure the network testbed at the ARI, while (above right) Scott Midkiff and Ph.D. students George Hadjichristofi and Tao Lin in Blacksburg observe the current network topology in a test of a mobile ad hoc routing protocol developed by Lin.

The two testbeds are linked via the Internet using a virtual private network to enable collaborative research. The testbeds, developed with support from the Office of Naval Research and the NSF, are used to conduct research in mobile ad hoc networks, including routing algorithms and protocols, network quality of service based on distributed policy-based network management, security architectures for ad hoc systems, and network support for real-time systems.

A unique feature of the testbeds is a special switch that lets researchers emulate a wireless and mobile environment using standard computers and network connections.

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Last updated: Wed, Jun 9, 2004