Security for Multihop Wireless Networks

184  ◾  Security for Multihop Wireless Networks

specified performance requirements for a sufficient time (denoted as network life-

time), the nodes must be capable of playing their role for a sufficiently long period

using the energy provided by their battery, which in many applications should not

be renewed for a long time. us, energy efficiency of all tasks performed by a node

is a must for the WSN design.

8.3 Features of WSNs

Wireless sensor nodes have distinguishing features that allow the nodes to self-

organize into a noninfrastructure network with dynamic topology. Typically, the

number of nodes in a sensor network is much higher than in an ad hoc network,

and dense deployments are often desired to ensure coverage and connectivity

(Puccinel