Study on Depending on the OpenFlow Controller Placement of Multi-pathization Method

This paper proposes a new method of improving multi-pathization method by only selecting the placement of OpenFlow controller. The performance of the multi-pathization is degraded by the difference in delay. The authors implemented their method by actual IoT devices and evaluate QoS by experiment. From the results of experiments, the TCP throughput when the location of the OpenFlow controller is appropriately selected is higher than that of multi-pathization method without our method. Thus, the proposed method decreases the difference in delay by replacing an OpenFlow controller adequately.