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http://dx.doi.org/10.6109/jkiice.2019.23.8.1004

Design of QoS based MAC protocol considering data urgency for Energy harvesting wireless sensor networks  

Park, Gwanho (School of Electrical Electronic and Communication Engineering, KOREATECH)
Park, Hyung-Kun (School of Electrical Electronic and Communication Engineering, KOREATECH)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.23, no.8, 2019 , pp. 1004-1010 More about this Journal
Abstract
In the EH-WSN (Energy harvesting wireless sensor network), a MAC (medium access control) protocol is required to select a relay node considering the power status of a node. Existing EH-WSN studies emphasize the power aspect, so it does not consider the QoS like the urgency of the sensed data. The required power and transmission delay must be changed according to the urgency so that the medium access control according to the data QoS can be performed. In case of relay node, relaying data without consideration of data urgency and node power may cause delay due to power shortage in case of urgent data. In this paper, we designed a MAC protocol that minimizes the power shortage that can occur during emergency data generation. For this, relay node requirements are set differently according to the urgency of data. The performance was analyzed through simulation. Simulation results show the reduced latency and improved reliability of urgent data transmission.
Keywords
energy harvesting; medium access control; QoS; urgency; wireless sensor network;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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