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http://dx.doi.org/10.6109/jkiice.2013.17.3.755

EEPB-MAC: Energy Efficient & Priority-Based MAC Protocol for Energy Harvesting Wireless Sensor Networks  

Kim, Seong-Cheol (상명대학교 컴퓨터과학부)
Jeon, Jun-Heon (상명대학교 컴퓨터과학)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.17, no.3, 2013 , pp. 755-761 More about this Journal
Abstract
Medium access control (MAC) protocols for wireless sensor networks make sensor nodes on state for energy-efficiency only when necessary. In this paper we present an energy efficient priority-based MAC protocol for energy-harvesting Wireless Sensor Networks (WSNs). For support priority-based packet transmission the proposed EEPB-MAC protocol uses the modified IEEE 802.15.4 beacon frames including priority bit, sender node address, and NAV value fields. A receiver node periodically wakes up, receives sender beacon frames, selects data sending sender, and broadcasts a beacon frame containing the selected sender's address. A receiver node selects sender node according to sender's data priority. A receiver nodes also adjust wake up period based on their energy states. Hence, the energy consumption of receiver node can be minimized. Through simulations and analytical analysis, we evaluate the performance of our proposed the EEPB-MAC protocol and compare it against the previous MACs. Results have shown that our protocol outperforms other MAC in terms of energy consumption, higher priority packet delivery delay.
Keywords
WSN; Energy Harvest; Medium Access Control(MAC); Priority data;
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