Thursday, 30 November 2023

MQTT in Edge Computing: Applications and Benefits

As technology continues to evolve, the Internet of Things (IoT) is becoming an increasingly prominent part of our daily lives. With more and more devices being connected to the internet, the need for efficient and reliable communication between these devices has become crucial. MQTT (Message Queuing Telemetry Transport) has emerged as one of the leading protocols for IoT communication, and it has also found a significant application in edge computing. In this article, we will discuss the applications and benefits of MQTT in edge computing and how it can help businesses to improve their operations.

What is MQTT?

MQTT is a lightweight messaging protocol that is designed for efficient and reliable communication between IoT devices. It is based on the publish-subscribe model, where a publisher sends a message to a broker, which then distributes the message to all subscribers. This model makes it easy to scale the system, as new subscribers can be added without affecting the existing ones.

MQTT has several advantages over other communication protocols, including low bandwidth usage, efficient data transfer, and support for offline devices. It is also highly customizable, with a flexible topic-based messaging system that allows for fine-grained control over the communication.

Applications of MQTT in Edge Computing

Edge computing is a distributed computing paradigm that brings computation and data storage closer to the location where it is needed. This approach reduces the latency and bandwidth requirements of IoT applications, making them more efficient and responsive. MQTT has found several applications in edge computing, including:

  1. Real-time data analysis: With MQTT, devices at the edge can send data to a central location for real-time analysis. This allows businesses to make decisions based on current data, rather than waiting for data to be collected and analyzed at a later time.
  2. Machine-to-machine communication: MQTT allows machines to communicate with each other in a decentralized manner, without the need for a central server. This approach reduces the risk of single-point failures and makes the system more resilient.
  3. Remote monitoring and control: MQTT can be used for remote monitoring and control of devices at the edge. This allows businesses to monitor and control devices from a central location, reducing the need for on-site technicians.

Benefits of MQTT in Edge Computing

  1. Improved reliability: MQTT is designed to be highly reliable, with support for message persistence, quality of service (QoS) levels, and last will and testament (LWT) messages. This ensures that messages are delivered even in the event of network disruptions or device failures.
  2. Low latency: MQTT has low latency, which is essential for real-time applications. By reducing the latency, MQTT allows businesses to make decisions based on current data, improving their operations.
  3. Low bandwidth usage: MQTT uses a small amount of bandwidth, making it ideal for IoT applications where network resources are limited. This also reduces the cost of data transfer and storage.
  4. Scalability: MQTT is highly scalable, with support for millions of devices and messages per second. This makes it easy to expand the system as needed, without affecting the existing devices and subscribers.


MQTT is a powerful communication protocol that has found several applications in edge computing. Its lightweight design, low bandwidth usage, and scalability make it an ideal choice for IoT applications where network resources are limited. By using MQTT, businesses can improve their operations, reduce costs, and make real-time decisions based on current data. With the continued growth of IoT, MQTT is set to become an even more important part of our connected world.