The goal of this thesis is to provide an adaptable protocol stack
architecture for data fusion applications. Towards the goal, this
thesis presents the design of SensorStack, that addresses three key
issues. First, towards network-level adaptability, how to
dynamically adapt the placement of a fusion application task graph
on the network? We have designed a distributed role assignment
algorithm and implemented in the context of DFuse, a framework for
distributed data fusion. Second, towards node-level adaptability,
how to facilitate cross-layering on a node to foster agile
adaptation of a node's behavior commensurate with the network-level
changes? SensorStack provides information exchange service (IES) as
a framework for cross-module information exchange. Finally, towards
tying the network and node level adaptability together, control data
published in IES needs to be shared across the network. SensorStack
uses a probabilistic broadcast based dissemination service (IDS) for
control data. We implement SensorStack in TinyOS and Linux to
validate the SensorStack design, and use simulation experiments to
investigate its network performance. Experiments demonstrate the
utility of adaptability in SensorStack to increase application
longevity.
| Identifer | oai:union.ndltd.org:GATECH/oai:smartech.gatech.edu:1853/13931 |
| Date | 28 August 2006 |
| Creators | Kumar, Rajnish |
| Publisher | Georgia Institute of Technology |
| Source Sets | Georgia Tech Electronic Thesis and Dissertation Archive |
| Language | en_US |
| Detected Language | English |
| Type | Dissertation |
| Format | 1352510 bytes, application/pdf |
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