Advantages of Fog Computing

Devices that are subjected to rigorous computations and processings must use fog computing. This selected data is chosen for long-term storage and is less frequently accessed by the host. Sagar Khillar is a prolific content/article/blog writer working as a Senior Content Developer/Writer in a reputed client services firm based in India. The cloud computing model is not suitable for IoT applications that process large volumes of data in the order of terabytes and require quick response times. Organizations with time-sensitive IoT-based applications with geographically dispersed end devices, where connectivity to the cloud is irregular stand to benefit from this technology.

Advantages of fog computing

If there is no fog layer, the Cloud communicates directly with the equipment, taking time. Fog computing provides better quality of services by processing data from devices that are also deployed in areas with high network density. In simple terms, fog computing is a distributed network fabric that stretches from the outer edges of data creation to the point of storage. By partially processing the data at the edge, overall real-time performance is greatly enhanced. For example, a manufacturing system can have any number of IoT sensors capable of not only monitoring, but processing data locally to make adjustments to the manufacturing process in real-time. The ‘fly in the ointment’ is our increasing demands on the cloud to provide services for real-time applications and IoT devices.

Enhancing Cloud Computing

Hence, introducing fog computing can empower organizations to bolster their cybersecurity mechanisms, thus improving security for their IT environment. Both edge and fog computing offers a number of advantages in a business world that is becoming more reliant on real-time analytics data to keep competitive. Traffic management systems can use edge and fog computing for real-time data analysis to alter traffic lights and intelligent road signs the moment an accident or road blockage occurs.

Data is transformed before being delivered to an IoT gateway or fog node. These endpoints gather the data to be used for additional analysis or send the data sets to the cloud for wider distribution. Processing latency is eliminated or significantly reduced by relocating storage and computing systems as close as feasible to the applications, parts, and devices that require them. As a result, user experience is enhanced and the pressure on the cloud as a whole is lessened.

  • Large amounts of data are transferred from hundreds or thousands of edge devices to the Cloud, requiring fog-scale processing and storage.
  • In this way, Fog is an intelligent gateway that dispels the clouds, enabling more efficient data storage, processing, and analysis.
  • Fog computing incorporates edge processing as well as the required network connections and infrastructure for transferring the data.
  • Fog computing pushes intelligence down to the local area network level of the network architecture, while processing data in a fog node or the IoT gateway.
  • Unlike the more centralized cloud, fog computing’s services and applications have widely distributed deployments.
  • So instead of having cloud servers do all the processing, why don’t we have all of those edge devices handle their computing needs and only send the results back to the server?
  • The terminology refers to a new breed of applications and services, particularly when it comes to data management and analytics.

On the other hand, fog computing shifts computing tasks to an IoT gateway or fog nodes that are located in the LAN network. The use of more sophisticated edge IoT, user devices, and fog nodes on your network will increase complexity and overall support requirements. With fog computing, a local fog node can instead be responsible for the video stream and is far quicker than offloading the processing to a centralised cloud platform.

Are fog computing and edge computing the same?

Fog computing can be very useful in dealing with the slow on-cloud computational process. Since fog computes the data on a server that is closer than the centralized data center, data transmission would become quicker, thus eliminating the latency issue. Even crucial studies of large amounts of data don’t always require the scale that cloud-based processing and storage can provide.

Advantages of fog computing

Fog computing essentially extends cloud computing and services to the edge of the network, bringing the advantages and power of the cloud closer to where data is created and acted upon. Edge computing and fog computing can be defined as computing methods that bring compute and data processing closer to the site where data is initially generated and collected. This article explains Edge and fog computing in detail, highlighting the similarities and important differences between these two computing methods.


This is another way to think about the differences between edge computing and fog computing. In this layer, the various nodes are monitored which includes monitoring tasks performed by various nodes, the time at which the task is performed, and the next course of action. The energy usage of fog nodes is also taken into consideration for monitoring purposes. To overcome these challenges, faced by IoT applications, in the cloud environment, the term fog computing was introduced by Cisco in the year 2012. Although it includes many benefits to the IT infrastructure, it comes with numerous drawbacks as well. It process selected data locally instead of sending them to the cloud for processing.

Advantages of fog computing

In edge computing, intelligence and power can be in either the endpoint or a gateway. Proponents of fog computing over edge computing say it’s more scalable and gives a better big-picture view of the network as multiple data points feed data into it. Popular fog computing applications include smart grids, smart cities, smart buildings, vehicle networks and software-defined networks.

Difference between fog computing and cloud computing

In this way, Fog is an intelligent gateway that dispels the clouds, enabling more efficient data storage, processing, and analysis. The app automatically makes adjustments to light patterns in real time, at the edge, working around traffic impediments as they arise and diminish. Traffic delays are kept to a minimum, and fans spend less time in their cars and have more time to enjoy their big day. The data is processed at the end of the nodes on the smart devices to segregate information from different sources at each user’s gateways or routers. It generates a huge amount of data and it is inefficient to store all data into the cloud for analysis.

Advantages of fog computing

Signals from IoT devices are sent to an automation controller which executes a control system program to automate those devices. This information is transformed into a format that internet-based service providers can understand, like MQTT or HTTP . The control system programme transmits data via different gateway protocols or a typical OPC Foundation server. In cloud computing, data processing takes place in remote data centers. Fog is processed and stored at the edge of the network closer to the source of information, which is important for real-time control.

Fog computing is usually used in tandem with traditional networking and cloud computing resources. The combination of these technologies can get very complex very quickly. Cloud has different parts such as frontend platform (e.g., mobile device), backend platform , cloud delivery, and network . Cloud computing service providers can benefit from significant economies of scale by providing similar services to customers. You have to regularly analyze and respond to time-sensitive generated data in the order of seconds or milliseconds.

How and why is fog computing used?

But still, there is a difference between cloud and fog computing on certain parameters. For example, commercial jets generate 10 TB for every 30 minutes of flight. Fog computing sends selected data to the cloud for historical analysis and long-term storage. Cloud computing can be applied to e-commerce software, word processing, online file storage, web applications, creating image albums, various applications, etc. In fog computing, data is received from IoT devices using any protocol. Devices at the fog layer typically perform networking-related operations such as routers, gateways, bridges, and hubs.

How does fog computing differ from edge computing? – ReadWrite

How does fog computing differ from edge computing?.

Posted: Fri, 05 Aug 2016 07:00:00 GMT [source]

These client PCs had more intelligence than their mainframe counterparts, but a lot of the processing power did reside with the server itself. Incidentally, during the PC client-server era, the Internet gained worldwide popularity and forever transformed every aspect of how we connect and work. Also known as fog networking or fogging, fog computing refers to a decentralized computing infrastructure, which places storage and processing at the edge of the cloud. However, the increasing amount of real-time data generated by IoT devices does not best suit to the centralised cloud design. The edge and fog computing models address this issue and will encourage a shift to a more hybrid design. Data does not necessarily need to be sent to the cloud for processing as some of the compute can be performed nearer the data source for time-sensitive services.

Physical Security Considerations

The application developed by the city to adjust light patterns and timing is running on each edge device. This revenue stream creates value for IoT fostering highly functioning internal business services. Fog computing also provides a common framework for seamless collaboration and communication helping OT and IT teams to work together to bring cloud capabilities closer.

Disadvantages of fog computing in IoT

With a reduction in network latency, real-time applications will benefit from improved response time and greater overall user experience. For example, a user with a hand-held device wishes to review recent CCTV video stream from a locally located IoT security camera. As the camera does not have storage, the video stream will be requested from the cloud.

Security in fog computing involves privacy, integrity, encryption, and decryption of data. I’m pretty sure that organizations across so many more verticals will be using fog computing and taking all the advantages of it. Improved decision making, faster deliverance of data, and maintaining consistency in relayed data, you name it and fog computing has got your back. It is estimated that with every 60 miles of distance from a cloud server, latency will increase by one millisecond.

Now with the help of fog computing, all the critical analyses can be done directly at the device itself. So, removing one intermediate layer will improve the speed of operations. In this article, I will be illustrating the 5 Advantages and Disadvantages of Fog Computing | Limitations & Benefits of Fog Computing.

Advantages and disadvantages of fog computing

It improves the overall security of the system as the data resides close to the host. It enhances cost saving as workloads can be shifted from one cloud to other cloud platforms. OnEdge is a free weekly newsletter that keeps you ahead of the curve on low-powered Edge devices and computer vision AI. If it is a question of costs, Edge computing is the less expensive alternative since established vendors provide the service at a fixed price.

The processing takes place in a data hub on a smart device, or in a smart router or gateway, thus reducing the amount of data sent to the cloud. So far, we have only really looked at the benefits and the upside to fog computing. Let’s get a better understanding of some of the limitations fog vs cloud computing of fog computing and edge devices and the concerns you may have. We’ve already highlighted some instances where real-time data analysis is crucial in the examples of IoT security. Real-time data analysis is also an important resource for Machine Learning applications.

Finally from this post, you will know the pros and cons of using fog computing. This article aims to compare Fog vs. Cloud and tell you more about Fog vs. cloud computing possibilities and their pros and cons. Cloud users can quickly increase their efficiency by accessing data from anywhere, as long as they have net connectivity.