Date Added: Nov 2012
Many Medium Access Control (MAC) protocols have been specifically designed for Wireless Sensor Networks (WSN) where energy awareness is an essential design issue. Sensor nodes sense environmental conditions, such as light, temperature, sound, or vibration etc., and transmit the sensed data to the sink node through multi-hop communication links. Energy awareness is one of the most important issues in WSNs. The radio transceiver is the most power consuming component in a sensor node. Transceiver power consumption is varying with different modes like transmit, receive, listen, and sleep. By using MAC protocol the authors can able to switch the radio interface into different modes. A new approach of an Energy Aware MAC (EA-MAC) algorithm is proposed in this paper.