Fig 1.
Cached-enabled IoT-edge system architecture.
Fig 2.
Total response time varying λi when the Zipf distribution parameter α = 0.3, 0.7 and 1.0.
Fig 3.
Total response time varying λi when the bandwidth β = 300 and 500 Mbps.
Fig 4.
Total response time varying λi when the the computation workload of the task cj = 75 and 200 cycles.
Fig 5.
Total response time varying (left) the size of task data sj and (right) the ratio of waiting time in total response time varying λi.
Fig 6.
Total response time varying the number of cloudlets when λi = 5, 7 and 10.
Fig 7.
Total response time varying (left) the number of clusters and (right) the caching capacity of the cloudlet.
Table 1.
The maximum number of cloudlets, the maximum and average number of replicas in each cluster for different number of clusters.