IoT Protocol Architecture

The most interesting point here is, IoT has don’t have any particular architecture. The researchers proposed different IoT architectures. But in that most proposed architectures three-layer architectures & five-layer architecture.

Three-layer IoT Architecture

This architecture introduced in the early days of research of IoT technology. The three-layers are in IoT architecture is for

Application Layer
Network Layer
Perception Layer

Application Layer: This layer is to deliver the specific application to the end-user. The specific applications can be done with this application layer. Example of this layer like a smartphone, smartwatch, smart TV, etc. which is used for a specific application.
Network Layer: Network layer have an important role in IoT architecture. It connects to the other smart electronic devices (smartwatches, servers, etc). The network layer is for transmitting and processing the sensor data.
Perception Layer: It is the physical layer and it gathers the surroundings data by sensing the area with help the of sensors.

Five-layer IoT Architecture

Another architecture which is five-layers IoT architecture is proposed by the researchers who were worked on IoT. In this five-layer IoT architecture, the three-layers which are the application, network, and perception layers are having same architecture like three-layer IoT architecture. Additionally, the Business layer, Transport layer, and processing layer are the new one.

Business Layer
Application Layer
Processing Layer
Transport Layer
Perception Layer

Business Layer: This layer is the head of the IoT architecture. It manages the complete IoT system even applications, user’s privacy, profit models, etc.
Application Layer: This layer is to deliver the specific application to the end-user. The specific applications can be done with this application layer. Example of this layer like a smartphone, smartwatch, smart TV, etc. which is used for a specific application.
Processing Layer: It is in the middle of the IoT architecture. It’s having an important role in this five-layer IoT architecture. This layer stores the data and process the data which comes from the transport layer. This processing layer able to implement latest technologies like big data, DBMS and cloud computing, etc.
Transport Layer: This layer forward the data from the processing layer to perception layer and vice versa through wireless networks like LAN, 3G, and Bluetooth, etc.
Perception Layer: It is the physical layer and it gathers the surroundings data by sensing the area with help the of sensors.