Rapidly Deployable Sensor Network
EMSL Project ID
3501
Abstract
Project BackgroundEmerging networking technology provides unique opportunities for the rapid deployment and operation of clusters of sensor systems. The Rapidly Deployable Sensor Network (RDSN) described in this document is focused on the location and tracking of a source of radiation by means of multiple radiation detection devices deployed pseudo-randomly in the environment but operating virtually as a single detector. The radiation detection technology necessary for this system is readily available in various physical configurations and is not the topic of this research. Rather, this research is focused on an effective method to network many of these detectors where the network is formed automatically by the sensor node itself.
The software development required by the RDSN project will result in a system that will allow an individual sensor node to create associations with other nearby nodes automatically. The network structure is dynamic-allowing individual sensor nodes to be added or deleted at any time without affecting the functionality of the network as a whole. As the number of nodes grows, the result is a network of sensor nodes. Other non-sensor nodes such as user interface nodes or interface nodes to other communications systems may attach to and participate as well.
Simulation Task
The nodes being developed will be operating radio links in the 900MHz band. We are developing a custom radio protocol that minimizes on-air time. This has the dual benefits of conserving bandwidth and conserving power, both of which are essential to these low bandwidth, battery powered nodes. The protocol requires an arbitration and registration scheme that is the subject of our simulation. Each scheme is simulated in a run composed of 2,000,000 trials and statistics are gathered for the short report which is the output of a run. The current simulation is run on a single processor computer and each run takes a week or more. We propose to convert the simulation to run on one of the large multiprocessor systems available at the Lab. Since each trial is independent of all others, this simulation can take advantage of the parallelism offered by these systems.
Project Details
Project type
Exploratory Research
Start Date
2003-04-14
End Date
2004-05-03
Status
Closed
Released Data Link
Team
Principal Investigator