Abstract — Developing of MAC protocol for Wireless Sensor

Network (WSN) has a challenging issue of Energy efficiency

because WSN has large number of sensor nodes with limited

processing capability and limited power. Most of WSN uses

battery for power. One of important task in developing mac

protocol for WSN is increase the life time of network it means

we have to use power very efficiently. To develop MAC

protocol, which is energy efficient, many flavour of MAC

protocol is proposed by different researcher. This paper is a

survey of active research work on Energy efficient MAC

protocol.-Abstract — Developing of MAC protocol for Wireless Sensor

Network (WSN) has a challenging issue of Energy efficiency

because WSN has large number of sensor nodes with limited

processing capability and limited power. Most of WSN uses

battery for power. One of important task in developing mac

protocol for WSN is increase the life time of network　it means

we have to use power very efficiently. To develop MAC

protocol, which is energy efficient, many flavour of MAC

protocol is proposed by different researcher. This paper is a

survey of active research work on Energy efficient MAC

protocol.