11-09-2017, 01:01 PM
Wireless Sensor Networks (WSNs) provide an excellent opportunity to monitor environments, and they have many interesting applications, some of which are very sensitive in nature and require a secure environment to complete testing. Wireless sensor networks are innovative large-scale wireless networks consisting of distributed, low-power, and small-sized devices that use sensors to collectively collect information through an infrastructure minus ad hoc wireless network. These small devices used in wireless sensor nodes are called sensor nodes. They are expected to play an important role in a wide range of areas, from critical military surveillance applications to forest fire monitoring and security monitoring in the near future. In these networks, a large number of sensor nodes are deployed to monitor a vast field, where operating conditions are more often harsh or even hostile. Because these networks are usually deployed in remote locations and left unattended, they must be equipped with security mechanisms to defend against attacks such as node capture, physical manipulation, spontaneous eavesdropping, denial of service, etc. feasible for sensor nodes with resource limitations.