Medium Access Controlled Transmit Power Adjustment for Energy Aware Wireless Sensor Networks

Transmit power adjustment is one of the key factor for prolonging the life time of the Wireless Sensor Networks. In this paper we present the energy aware MAC protocol which is adjust the transmit power for single hop and multi hop Communication in the wireless sensor networks which is associated with the residual energy and hop count. Sender receives the Hop count information between the sink and intermediate nodes through RTS/CTS handshaking procedure, then compute the transmission power by using the residual energy and the hop count information. The proposed system uses different threshold mechanisms for computing the transmission power. Based on the analytical results, by implementing the threshold levels yield better energy utilization compared to the absence of the same.