Routing in Wireless Sensor Networks using Fuzzy Logic: A survey

A wireless sensor network (WSN) is a large set of distributed sensor nodes intended to sense physical surrounding data and transmit it to a base station (BS). These sensors are supposed to collect, aggregate, analyze and communicate physical data that will be transformed into profitable information.WSNs are usually implemented in critical areas and sensor nodes are non-rechargeable. Therefore, they present limitations in terms of power supplies, which brings about numerous challenges related to the optimization of the energy consumption.Since an important amount of sensors energy is consumed by the transmission unit, it is pivotal to better how data is transmitted among the network. In connection with this point, optimizing routing protocols in WSNs becomes a prerequisite axe of interest for the sake of enhancing the energy conservation and consequently expending the network lifetime.In this regard, this paper describes firstly a classical the most famous clustering based routing protocol, then discuss its improvements that use intelligent algorithms. Subsequently, the article depicts many different fuzzy logic based routing protocols and exhibits summarily their advantages and limitations.