What is Wi-Fi?
Wi-Fi is a wireless local area network (WLAN) technology. It allows IoT devices to connect directly to existing Wi-Fi infrastructure, enabling fast communication without the need for an additional gateway. This makes Wi-Fi one of the most widely adopted connectivity options for consumer and enterprise IoT solutions.
Why is Wi-Fi used in IoT?
- Easy setup: No extra hardware or gateways are required.
- High speed: Offers fast local data transfer, suitable for applications requiring real-time performance.
- Low cost: Utilizes existing network infrastructure, reducing deployment expenses.
- Wide support: Compatible with the majority of consumer and industrial devices.
Advantages of Wi-Fi for IoT
- High Bandwidth – Ideal for applications that require large data transfers, such as video streaming or real-time monitoring.
- Accessibility – Since Wi-Fi is widely available in homes, offices, and public areas, integration is straightforward.
- Scalability for Local Environments – Multiple IoT devices can be connected within a single network without additional costs.
Limitations of Wi-Fi in IoT
- Power Consumption – Wi-Fi tends to consume more energy compared to other IoT protocols (e.g., NB-IoT, LoRaWAN), which can be a drawback for battery-powered devices.
- Limited Range – Coverage is usually restricted to the range of the router, making it less suitable for remote monitoring.
- Network Congestion – In dense environments, multiple devices may experience connectivity issues due to interference.
Use Cases of Wi-Fi in IoT
- Smart Home Devices: Security cameras, smart plugs, and sensors that require high-speed communication.
- Industrial Applications: Local monitoring of machinery within factories.
- Office and Building Automation: Seamless communication between devices inside a closed environment.
- Prototyping & Testing: Since it requires no additional gateways, Wi-Fi is often used in early-stage IoT prototypes.