where WSNs are deployed in
remote and inhospitable environments to collect data without
human risk. It is envisioned that WSNs will consist of
numerous miniaturized sensor nodes that report their findings
to a base-station. WSNs are expected to be formed in the field
in an ad-hoc manner. Due to the lack of infrastructure, the
remote deployment, and the uncertainty about the inter-node
communication links, a WSN is usually bootstrapped and
managed in a decentralized manner