An energy efficient hybrid MAC protocol for WSN containing mobile nodes

Design of energy efficient medium access control (MAC) protocol for wireless sensor network (WSN) containing mobile nodes is a challenging task. Majority of the MAC protocols for wireless sensor networks assume static sensor nodes, which results in poor performance of such protocols in a network containing mobile nodes. In this paper we propose a MAC protocol which is energy efficient as well as suitable for a WSN containing mobile nodes. The proposed protocol is based on both TDMA and CSMA. It adjusts the frame size to adapt to the changes in mobility and traffic conditions. The performance of the proposed protocol has been compared with LEACH-C protocol. It outperforms LEACH-C in terms of average energy consumption, packet delivery ratio and network life time.

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