Abstract
With ever-increasing applications of IoT, and due to the heterogeneous and bursty nature of these applications, scalability has become an important research issue in building cloud-based IoT/M2M systems. This research proposes a dynamic SDN-based network slicing mechanism to tackle the scalability problems caused by such heterogeneity and fluctuation of IoT application requirements. The proposed method can automatically create a network slice on-the-fly for each new type of IoT application and adjust the QoS characteristics of the slice dynamically according to the changing requirements of an IoT application. Validated with extensive experiments, the proposed mechanism demonstrates better platform scalability when compared to a static slicing system.
Highlights
As millions of Internet of Things/Machine to Machine (IoT/M2M) devices are connected to the cloud, the IoT/M2M platform normally deployed in the cloud needs to be constructed with scalability design to serve a massive amount of IoT/M2M requests generated [1]
Our research proposes to improve the cloud-based IoT/M2M system scalability by assigning each different type of IoT/M2M applications to a different network slice configured with the appropriate Quality of Service (QoS)
The IoT applications considered in this research are based on HTTP RESTful communications, but we are aware that other application protocols like CoAP or MQTT are popular among IoT applications
Summary
As millions of Internet of Things/Machine to Machine (IoT/M2M) devices are connected to the cloud, the IoT/M2M platform normally deployed in the cloud needs to be constructed with scalability design to serve a massive amount of IoT/M2M requests generated [1]. IoT/M2M system scalability can be achieved by horizontal scalability, which means scaling out or in server instances. Horizontal scalability of web applications has been extensively studied with many good results [2] [3] [4] [5]. Such horizontal scalability ignores the nature of IoT/M2M applications with heterogeneous and bursty Quality of Service (QoS) requirements.
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