Fig. 4From: A controller deployment scheme in 5G-IoT network based on SDNThe average latency obtained by the standard K-means algorithm 200 times (Internet2 OS3E). x axis: test times: According to the k-means algorithm, we calculated the deployment positions of controllers 200 times when the number of controllers is 3, 4, 5 and 6. y axis: average latency (ms)Back to article page