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Authors
Advisor(s)
Abstract(s)
Wireless Sensor Networks (WSNs) are highly distributed
systems in which resource allocation (bandwidth, memory) must be
performed efficiently to provide a minimum acceptable Quality of
Service (QoS) to the regions where critical events occur. In fact, if
resources are statically assigned independently from the location
and instant of the events, these resources will definitely be
misused. In other words, it is more efficient to dynamically grant
more resources to sensor nodes affected by critical events, thus
providing better network resource management and reducing endto-
end delays of event notification and tracking. In this paper, we
discuss the use of a WSN management architecture based on the
active network management paradigm to provide the real-time
tracking and reporting of dynamic events while ensuring efficient
resource utilization. The active network management paradigm
allows packets to transport not only data, but also program scripts
that will be executed in the nodes to dynamically modify the
operation of the network. This presumes the use of a runtime
execution environment (middleware) in each node to interpret the
script. We consider hierarchical (e.g. cluster-tree, two-tiered
architecture) WSN topologies since they have been used to
improve the timing performance of WSNs as they support
deterministic medium access control protocols.