A Cloudlet Placement Method Based On Birch In Wireless Metropolitan Area Network

Mobile edge computing was proposed to push data centers towards network edges for reducing the network latency of delivering cloud services to mobile devices. Cloudlet is one type of edge servers which can provide abundant resources to mobile users. However, there are a large number of mobile users in Wireless Metropolitan Area Network (WMAN), and these users are always on the moving. Meanwhile, the number of cloudlets is limited. And therefore how to deploy cloudlets in WMAN is critical. In view of these challenges, a cloudlet placement method based on Balanced Iterative Reducing and Clustering Using Hierarchies is proposed in this paper. Compared to other methods, our proposed method not only can cover most of mobile devices, but also solve user mobility issues. In addition, a load balancing process is used in our proposed method which can balance each cluster better.