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Use of Wireless sensor networks has been widely seen in the fields of target detection and tracking, environmental monitoring, industrial process monitoring, and tactical systems. In wireless sensor networks nodes work with an incomplete power source, energy efficient operations in an important factor of the nodes in wireless sensor network. Energy conservation plays important role in different layers of the TCP/IP protocol suit, and for MAC layer it is the effective part. Therefore, to work in wireless communicating sensors network, the authors use MAC protocol which improve energy efficiency by increasing sleep duration, decreasing idle listening and overhearing, and eliminating hidden terminal problem or collision of packets.
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