Abstract
In dense deployments of sensor nodes in a Wireless Sensor Networks (WSNs), sensors are spatially correlated and they may sense same information and send the same information to its sink node. So each sensor node wastes energy in transmitting redundant data. Furthermore, sensor nodes near sink node may treat more data and use more energy than other node. In this paper we propose a energy efficient data transmission mechanism which reduces redundant data transmission and saves node energy. Using modified RTS control frame of IEEE 802.11 MAC and direction information of received data packet, each sensor node may drop its measured redundant data. Results have shown that our data transmission mechanism outperforms other mechanisms in terms of energy saving and amount of data traffics.
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