Editing Wireless sensor network (section)

===Distributed sensor network===
If a centralized architecture is used in a sensor network and the central node fails, then the entire network will collapse, however the reliability of the sensor network can be increased by using a distributed control architecture. Distributed control is used in WSNs for the following reasons:

# Sensor nodes are prone to failure,
# For better collection of data,
# To provide nodes with backup in case of failure of the central node.

There is also no centralised body to allocate the resources and they have to be self organized.

As for the distributed filtering over distributed sensor network. the general setup is to observe the underlying process through a group of sensors organized according to a given network topology, which renders the individual observer estimates the system state based not only on its own measurement but also on its neighbors'.<ref>{{Cite journal|last1=Li|first1=Wangyan|last2=Wang|first2=Zidong|last3=Wei|first3=Guoliang|last4=Ma|first4=Lifeng|last5=Hu|first5=Jun|last6=Ding|first6=Derui|date=2015|title=A Survey on Multisensor Fusion and Consensus Filtering for Sensor Networks|journal=Discrete Dynamics in Nature and Society|language=en|volume=2015|pages=1–12|doi=10.1155/2015/683701|issn=1026-0226|doi-access=free}}</ref>