Masoumeh Souri - CST-Lab,school of Eng,university of Tehran,Iran
Marziyeh Felahat - Department of Mathematics,Faculty of Basic Sciences, Bozorgmehr University of Qaenat,Iran
Mohsen Mollasadeghi - Bachelor degree student in industrial electricity university of applied,science and technology Eisargaran Ghaem Pars Industries Branch

Wireless sensor networks are a set of connected sensors in which each sensor node is able to collect some information, process, store and, if necessary, communicate with other sensors. One aspect of design in wireless sensor networks is the problem of sensor deployment. The deployment of the sensor represents the cost and capability of detecting a sensor network. The deployment of the sensor network should take into account both the coverage and connection issues. Wireless sensors play an important role in daily life and compose a part of our lives in homes, vehicles, traffic, food production, health care, monitoring and controlling activities. In addition, we can use wireless sensors in order to response to current social issues such as optimizing natural resources, reducing carbon emissions, and even remote monitoring elderly patients. Therefore, according to common using of wireless sensors, in recent years, energy conservation in wireless sensor network is taken into consideration that aims at increase life time of sensors batteries. In this paper, we investigate energy conservation in wireless sensor networks. In the first, existence solutions in energy management of wireless sensor networks are classified. Then, related proposals that increase energy efficiency in wireless sensor networks, are compared and evaluated.

Wireless sensor networks, Sensor node, Energy management, Energy conservation