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SDN based QoS Control Methods with the Classifications of IoT Data Transmissions for Disaster Information Systems
Abstract With the recent IoT (Internet of Things) technology developments, new functions are expected to the future DIS (Disaster Information System) with IoT devices. However, it is considered that the increased IoT data would cause congestions for Internet services, and it is necessary to consider the QoS (Quality of Service) controls for the system. Therefore, this paper proposes the QoS control methods using the SDN (Software Defined Network) by the classifications of IoT data transmissions. In detail, first of all, the routing functions with the Extend Dijkstra’s algorithm is introduced. In the routing, IoT data is classified into four categories, and the proper route is selected by the Dijkstra’s algorithm with the QoS priority values of the classifications. Also, the switching functions are introduced to avoid network congestion in the selected route. In the switching, if the IoT traffic load reaches more than 80 percent of the maximum throughput of the selected route, the IoT data is distributed
by the additional route. The paper then reports the implementations of the prototype system by using the SDN, and the experiments show the effectiveness of the proposed methods. Keywords: SDN; IoT; Disaster Information System. Research Briefs on Information & Communication Technology Evolution (ReBICTE)
DOI: 10.22667/ReBiCTE.2021.06.15.002 |