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What is Wi-Fi Network And How does Wi-Fi work?

Educations

Wi-Fi is a wireless technology used to connect computers, tablets, smartphones, and other devices to the Internet.

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Wi-Fi is a radio signal sent from a wireless router to a nearby device, which translates the signal into data that you can view and use. The device transmits a radio signal back to the router, which connects to the Internet by wire or cable.

What is Wi-Fi Network?

A WiFi network is simply an Internet connection that is shared with multiple devices in a home or business via a wireless router. The router is connected directly to your Internet modem and acts as a hub for broadcasting Internet signals to all of your Wi-Fi-enabled devices. It lets you stay connected to the internet as long as you are in your network coverage area.

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What is meant by Wi-Fi?

Ironically, it doesn’t stand for anything. Wi-Fi, often referred to simply as WiFi, WiFi, Wi-Fi, or Wi-Fi, is often thought of as short for Wireless Fidelity but it is not. The term was coined by a marketing firm as the wireless industry was looking for a user-friendly name to refer to some non-user-friendly technology called IEEE 802.11. And the name stuck.

Using Wi-Fi or WLAN, we can create simple point-to-point wireless connections, which are known as point-to-point networks. This can be useful for connecting two locations that are difficult to reach by wire, such as two buildings of a corporate business.

Another important application is VoWi-Fi, better known as Voice-over Wi-Fi. A few years back, telcos introduced VoLTE (Voice over Long-Term Evolution). Nowadays they are exposed to VoWi-Fi so that we can call anyone using our home Wi-Fi network, the only thing is that the mobile needs to be connected to Wi-Fi.

How does Wi-Fi work?

Wi-Fi uses radio waves to transmit data from your wireless router to Wi-Fi-enabled devices such as your TV, smartphone, tablet, and computer. Because they communicate with each other over the airwaves, your devices and personal information can be vulnerable to hackers, cyber-attacks, and other threats. This is especially true when you’re connected to a public Wi-Fi network in places like a coffee shop or airport. When possible, it is best to connect to a wireless network that is password protected

Wi-Fi is a wireless technology for networking, so it uses electromagnetic waves to transmit the network. We know that electromagnetic waves have many divisions according to their frequency such as X-ray, Gamma-ray, Radio wave, Microwave, etc. Radio Frequency is used in Wi-Fi. There are three mediums for transmitting Wi-Fi signals,

Base station network or Ethernet (802.3) connection: This is the main host network from which the network connection is provided to the router.

Access Point or Router: It is the bridge between a wired network and a wireless network. It accepts a wired Ethernet connection and converts the wired connection into a wireless connection and spreads the connection as a radio wave.

Accessing devices: This is our mobile, computer, etc., from where we access Wi-Fi and surf the internet. ected or a personal hotspot.

All electronic devices read data in binary form, routers, or even our devices, here routers provide radio waves and those waves are received by our devices and read the waves in binary form.

some more vocabulary

SSID (Service Set Identifier): This is a 32-character name that identifies a Wi-Fi network and distinguishes one Wi-Fi from another. All devices are trying to connect a particular SSID. Simply, SSID is the name of the wireless network.

WPA-PSK (Wi-Fi Protected Access – Pre-Shared Key): This is a program developed by the Wi-Fi Alliance Authority to secure wireless networks with the use of pre-shared key (PSK) authentication. There are 3 types of WPA, namely WPA. WPA2, WPA3. This is a way to encrypt the Wi-Fi signal to protect it from unwanted users.

Wi-Fi uses ad-hoc networks for transmission. It is a point-to-point network without any interfaces.

How do signals reach our devices?

 base station

Benefits of Wi-Fi

It is a flexible network connection, with no wiring complexity. Accessible from anywhere in the Wi-Fi range.

It does not require regulatory approval for individual users.

It is salable and can be extended using a Wi-Fi extender.

It can be set up in an easy and fast way. Just need to configure SSID and Password.

High security in Wi-Fi networks, uses WPA encryption to encrypt the radio signal.

It is also less in cost.

It can also provide a hotspot.

It also supports roaming.

Disadvantages of Wi-Fi

Power consumption is high when using Wi-Fi on any device with a battery like mobiles, laptops, etc.

There may be some security issues at times, even encryption is involved. Just as many times known devices have become unknown to the router, Wi-Fi can also be hacked.

Speeds are slow compared to direct cable connections.

It has less radiation than a cell phone, so it can harm humans.

Wi-Fi signals can be affected by climatic conditions such as thunderstorms.

Unauthorized access to Wi-Fi may occur because it does not have a firewall.

To use Wi-Fi we need a router, which requires a power source, so we cannot access the internet when there is a power cut.

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