Читать книгу The Smart Cyber Ecosystem for Sustainable Development - Группа авторов - Страница 15

The applicability and scope of IoT depends on its basic characteristics as given below [2].

Connectivity: Permits network accessibility and compatibility. Compatibility provides the ability to consume and produce data from the network while accessibility is the ability to avail network access.

Interconnectivity: This characteristic of IoT says that Anything around us can be Interconnected and thereby communicated with others.

Heterogeneity: The devices that are used in IoT are different in nature, hardware platform, and other network-related capabilities. Such devices are known as heterogeneous devices that can work together with each other in various networks.

Scalability: In IoT, the amount of devices connected with each other to perform communication is very large, i.e., in millions or even in trillions compared to existing internet. So, in this scenario, it is critical to manage and interpret the generated data that ultimately requires scalable data handling techniques. So, even when internally connected devices such as sensors and other connecting devices increase, it should not affect network performance.

Dynamic: The devices connected with each other in IoT are changing not only their status from connected to disconnected, sleep to wake up but they also update their location as well as speed. Thus, it dynamically updates the number of connected devices.

Safety: As we have discussed, millions and trillions of devices are connected in IoT, so safety for data generators and data recipients is must. Such safety design should be made available to data in network, network endpoints, and network itself with sufficient scaling.

Having such characteristics, IoT architecture can be classified into three different tiers such as Physical Layer, Network Layer, and Application Layer as follows.