Figure 5. Hierarchy of nodes
The strategy to deploy the WSN for our system is as follows:
o We first partition our region of interest into several smaller areas for better management of
huge amount of data that will be collected from the system and for better coordination of the
various components involved
o We deploy one cluster head in each area; these will form cluster with the nodes in their
respective areas, collect data from them, perform aggregation and send these back to the
sink.
o We, then, randomly deploy the sensor nodes in the different areas. These will sense the data,
send them to the cluster head in their respective area through multihop routing
o We will use multiple sinks that will collect aggregated from the cluster heads and transmit
them to the gateway. Each sink will be allocated a set of cluster heads.
o The gateway will collect results from the sinks and relay them to the database and
eventually to our application