Intrusion Detection Systems for Internet of Things

2. Iot Network And Architecture

IoT is not a single technology, rather a collection of various technologies that work together in a collaborative manner. IoT devices are embedded with sensors, actuators, processors and transceivers. Sensors are devices that collect data from the physical environment. Common sensors are temperature, camera, pressure, UV etc., Data from sensors are stored and processed either on the edge of the network or in remote servers. Actuators are devices used to effect a change in the environment based on the processed information. IoT devices are installed at geographically dispersed location and so uses wireless communication medium. Devices, local network (gateway), Internet and back-end services form the core infrastructure of IoT architecture.

The most basic architecture of IoT is a three-layered architecture. The three layers are perception layer, network layer and application layer as shown in Fig 1.

Figure 1.

3-layered architecture of IoT