Safe Data Transmission Architecture Based on Cloud for Internet of Things

Nowadays, cloud computing technology, and IoT technology are one of the inevitable core trends. These technologies are key technology of various ICT convergence services, and it will create a value-added business and market. Although it is in its infancy, there is no doubt that it will be a game changer. However, cloud computing technology and IoT technology have some limitations especially in openness and standardization because they have been independently evolved. This is why they expose some weak-points, which are difficult to expand to various services, and it also has some problems to interwork other devices or services. In the safe network case, current safe network service has a restriction because it is based on closed networks. In addition, the key technology in the safe networking has an independent scheme or architecture. Due to the fact that we need new architecture to integrate entire networks, there are no certain alternatives so far. It is because most of related works are focused on the providing to just the safety in the networks. To solve these problems, we propose a safe data transmission architecture for the IoT ecosystems. The proposed architecture is a kind of software defined network base cloud, and it can provide the safe data transmission with QoS/QoE. Basically, the proposed architecture has three states, install, start and working, and four phase, negotiation, initialization, configuration and execution. In the install state, the devices set some parameters such as a synchronization time between node in cloud and IoT device. Based on the install state, data transmission will be started in the start state. In the start state, the nodes start data transmission by the set parameters in the install state. And then, the nodes keep the working state. However, it can be changed whenever user's request to upgrade the transmission security. The proposed architecture has some enhanced synchronization algorithms to provide a safe data transmission and to guarantee a QoS/QoE. Based on the architecture, we verified that the proposed architecture outperforms than legacy architectures in various aspects, and we are shown these simulation results by using OPNET.