International Journal of Innovative Science Engineering and Technology (IJISET)
Wireless Sensor Networks (WSNs) produce a large amount of data that needs to be processed, delivered, and assessed according to the application objectives. The way these data are manipulated by the sensor nodes is a fundamental issue. Information fusion arises as a response to process data gathered by sensor nodes and benefits from their processing capability. This paper presents the state of-the-art related to information fusion and how it has been used in WSNs and sensor based systems in general. The common terminology used to describe information fusion and common classifications has also been discussed.