IoT_Protocols_Detailed_Presentation (1).pptx

IOT

1. IoT Protocols Overview Detailed breakdown of IoT protocols across OSI layers

2. MQTT (Message Queuing Telemetry Transport) Overview: MQTT is a lightweight messaging protocol based on the publish/subscribe model, designed for low-bandwidth, high-latency, or unreliable networks. Key Features: Asynchronous communication, Minimal overhead, QoS levels, Retained messages, Last will/testament Use Cases: Smart home automation, Industrial monitoring, Remote sensor data collection, Vehicle telemetry Advantages: Efficient for constrained devices, Scalable, Works over unreliable networks Limitations: Not ideal for large payloads, Requires broker, Manual security implementation

3. CoAP (Constrained Application Protocol) Overview: CoAP is a specialized web transfer protocol for use with constrained nodes and networks in the IoT. Key Features: RESTful interaction model, UDP-based, Low overhead, Supports multicast Use Cases: Smart lighting, Environmental monitoring, Home automation Advantages: Lightweight, Easy integration with HTTP, Efficient for low-power devices Limitations: Limited reliability, Security requires DTLS, Not suitable for large data transfers

4. HTTP (Hypertext Transfer Protocol) Overview: HTTP is the foundation of data communication for the World Wide Web, used in IoT for web-based interactions. Key Features: Request-response model, Stateless, Widely supported Use Cases: Web dashboards, Device configuration interfaces Advantages: Universal support, Easy to implement Limitations: Heavy for constrained devices, Not optimized for real-time communication

5. WebSocket Overview: WebSocket is a protocol providing full-duplex communication channels over a single TCP connection. Key Features: Real-time communication, Persistent connection, Low latency Use Cases: Live monitoring, Real-time control systems Advantages: Efficient for real-time apps, Reduces overhead Limitations: Requires persistent connection, More complex than HTTP

6. XMPP (Extensible Messaging and Presence Protocol) Overview: XMPP is a communication protocol for message-oriented middleware based on XML. Key Features: Real-time messaging, Extensible, Presence information Use Cases: Smart appliances, Real-time alerts Advantages: Flexible, Supports federation Limitations: XML overhead, Complex for constrained devices

7. DDS (Data Distribution Service) Overview: DDS is a middleware protocol for real-time, scalable, and high-performance data exchange. Key Features: Publish/subscribe model, Real-time QoS, Decentralized architecture Use Cases: Autonomous vehicles, Industrial automation Advantages: High performance, Scalable, Real-time support Limitations: Complex setup, Larger footprint

8. AMQP (Advanced Message Queuing Protocol) Overview: AMQP is an open standard protocol for message-oriented middleware, focusing on reliability and interoperability. Key Features: Message queuing, Routing, Security, Transactions Use Cases: Enterprise IoT, Financial systems Advantages: Reliable delivery, Interoperable Limitations: Heavy for constrained devices, Requires broker