Abstract

WSNs spatially deployed over a field can be designed to collect information and monitor many phenomena of interest.
Important role in several daily application scenarios such as health-care monitoring, home applications, smart farming, environment monitoring, and military.

Low Power Hardware: Clearly, the biggest design constraint in WSNs still remains the power consumption. Even-though the SNs are being designed using low-power micro controllers, their power dissipation is still orders of magnitude too high.

Resource Constraints: Battery operated devices with limited on-board energy, both the system lifetime and communication bandwidth (BW) are restricted. Both the signal processing and communication should be carefully designed to consume minimal energy in order to extend the lifetime and improve the overall reliability of the WSN.

Network Security:Usually unattended (geographically dispersed) and this makes them vulnerable to attacks. The overall detection and estimation strongly depends on the reliability of these SNs.