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Energy Efficient Medium Access Control for Large-Scale Sensor Networks  

Bae, Jin-Heon (Department of Electronics Engineering, Dongguk University)
Kim, Keon-Wook (Department of Electronics Engineering, Dongguk University)
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Abstract
This paper proposes Co-MAC (Coexistence MAC), an energy efficient medium access control protocol designed for large-scale sensor networks. In Co-MAC protocol, an overall network is divided into independent subnets, and each subnet orthogonally operates on time line in a temporal fashion. The basic idea of Co-MAC is to evenly distribute sensor nodes in a certain geographic area based on subnets to minimize overhearing which means the reception of unnecessary data packets from neighboring nodes. In our simulation, it was observed that energy efficiency of Co-MAC outperforms conventional MAC protocols under the given conditions.
Keywords
medium access control; large-scale sensor network; sensor network; energy efficient protocol;
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