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Nowadays, wireless connection powers everything from smartphones to smart homes, becoming an essential component of daily life. Wi-Fi, a technology that enables devices to connect to the internet and interact with one another without the need of physical connections, is at the heart of this wireless revolution. But what is the real mechanism of Wi-Fi? The technology behind Wi-Fi will be examined in this article, along with the functions of routers, signals, and frequency bands and how they interact to provide lag-free internet access. Here we will be discussing about what is the difference between internet and wifi.
The Principles of Wireless Technology
Radio waves are used by Wi-Fi, a wireless networking technology, to transfer data between devices. The Institute of Electrical and Electronics Engineers (IEEE) defines standards that it works on; in particular, the 802.11 family of protocols. These specifications specify how devices may speak to one another over a shared wireless channel. Your device transforms data into radio signals that are sent to and from a router when you join to a Wi-Fi network, allowing you to communicate with other networked devices and the internet.
Routers’ Function in WiFi Networks
Any Wi-Fi network’s router, which controls data flow between linked devices and the internet, is its central component. As a gateway, the router receives data from the internet, sends it to devices that are connected, and helps those devices communicate with one another. It can cover a certain area since it has radio signal sending and receiving antennas. Multiple frequency bands are often supported by modern routers, which improve their capacity to handle many devices without sacrificing performance.
Gaining Knowledge of Signals and Frequency Bands
The two frequency bands that are most often used by Wi-Fi are 2.4 GHz and 5 GHz. Because it is older and has a longer range, the 2.4 GHz band is perfect for getting through walls and connecting to far-off devices. However, interference from nearby Wi-Fi networks and other electrical devices might cause it to become crowded. Although it has a shorter range, the 5 GHz band is better for high-bandwidth applications like gaming and streaming because it delivers quicker data rates and fewer interference. The ability to use both frequencies to optimise performance depending on connection requirements is offered by dual-band routers.
The Procedure for Linking Devices
A device searches for accessible networks and detects the network name, or SSID (Service Set Identifier), when it tries to join to a Wi-Fi network. After choosing a network, your device talks to the router to get an IP address. Usually, this is done using DHCP (Dynamic Host Configuration Protocol). Through this procedure, your device may connect to the network and start transmitting and receiving data packets, facilitating smooth internet access and device-to-device communication.
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