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http://dx.doi.org/10.12673/jant.2020.24.6.613

Design of Variable Timeslot for Hybrid MAC  

Ryu, Jeong-Kyu (BLUTek Inc)
Lee, Seong-Real (Division of Navigational Information System, Mokpo National Maritime University)
Publication Information
Journal of Advanced Navigation Technology / v.24, no.6, 2020 , pp. 613-619 More about this Journal
Abstract
Hybrid media access control (MAC) is used in internet of things (IoT) network, because of communication feature concern with data capacity and communication interval between gateway and sensor nodes and the cost efficiency. Hybrid MAC consists of TDMA and CSMA generally. The distance between gateway and sensor node is openly changed in marine IoT network. Therefore, it is needed to control the period of timeslot of hybrid MAC used in marine IoT network. In this paper, the design rule of TDMA timeslot with the variable period depending on communication distance was proposed. It was confirmed from the analysis that 72 times communication between gateway and sensor nodes is possible in LoRa network by using the proposed TDMA variable timeslot scheme.
Keywords
Hybrid MAC; Spreading factor; Timeslot; LoRa network; Marine IoT;
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Times Cited By KSCI : 5  (Citation Analysis)
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