Access Features Analysis of Things in the Internet of Things

Internet of Things (IoT), as an open-loop ubiquitous network, makes things in the world directly "dialogue". It realizes the interconnection between "things". Unlike computing devices with Internet access, there are a lot of heterogeneous things without access capability under IoT, and how to access IoT for such "things" is a key issue and technology of IoT. In this study, we first recognize the features and attributes of things in IoT. We then analyze the functional and non-functional access requirements for those access constrained devices. Finally, thecurrent IoT access cases are analyzed and summarized. This study gives thorough analysis on access features of things in IoT. It will provide an important foundation for further research onaccess technology and access systems.