ABSTRACT
Wireless Sensor Networks have come to the forefront of the scientific community recently and it consists of small
nodes with sensing, Communications and computing capabilities. The Wireless Sensor Network Systems can be
applied to monitor different environments. In WSN, sensor nodes play the most prominent role. These sensor
nodes batteries are replacing or recharging is impossible, it is essential to find energy efficient routing algorithm.
In this paper, we survey the features / characteristics and different well-know energy efficient cluster routing
algorithms for WSNs have been classified and presented based on their characteristics.
Keywords: - Wireless Sensor Networks (WSN), Clustering, Energy Efficiency, Distributed cluster routing
algorithms, Centralized cluster routing algorithms, Uni-form distribution..