Wi-Fi, often referred to as WiFi, wifi, wi-fi or wi fi, is often thought to be short for Wireless Fidelity but there is no such thing. The term was created by a marketing firm because the wireless industry was looking for a user-friendly name to refer to some not so user-friendly technology known as IEEE And the name stuck.
Wi-Fi uses radio waves to transmit data from your wireless router to your Wi-Fi enabled devices like your TV, smartphone, tablet and computer. Because they communicate with each other over airwaves, your devices and personal information can become vulnerable to hackers, cyber-attacks and other threats. This is especially true when you connect to a public Wi-Fi network at places like a coffee shop or airport.
Your options for connecting wirelessly at home are growing as mobile networks expand into the home internet realm. As with internet service, there are advantages and disadvantages to each type of wireless connection, such as speed and strength of signal. Most homes use a wireless router to access the internet these days. The pros include convenience of setup, mobility within range of the Wifi access point router and the ability to connect multiple devices. The cons: limited bandwidth and reduced speed as more devices are connected to the same Wifi network, as well as potential interference from other electromagnetic devices in the home.
Mobile and dedicated hotspots are becoming a more popular way of connecting safely on the go. Two common hotspot devices are your smartphone and a jetpack. Most any smartphone or tablet today can be used as a temporary hotspot and is a great option if you occasionally need it. On the other hand, a jetpack acts as a dedicated mobile hotspot that picks up a signal from cell towers in your area just like your smartphone.
Instead, a host like your router connects to the internet via a modem. That host then facilitates a network connection between devices like your laptop wirelessly. Stands for: Wide Area Network. Actually means: Your connection to the internet. A WAN might be limited to a private space or accessible to the public. The most well-known public WAN is the internet, which spans the entire world. In your home, you connect to the internet via your ISP, which creates a private WAN that allows all the devices within your home to send and receive data over the internet.
Search for: Search Search. Company Technology Features Lifestyle. Federal Communications Commission. Today, multiple revisions of the IEEE Similar to the traditional transistor radio, WiFi networks transmit information over the air using radio waves, which are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light.
WiFi radio waves typically have the frequency of either 2. These two WiFi frequency bands are then subdivided into multiple channels, with each channel possibly being shared by many different networks. When you download a file over a WiFi network, a device known as a wireless router first receives the data from the internet via your broadband internet connection and then converts it into radio waves.
The wireless router then emits the radio waves to the surrounding area, and the wireless device that has initiated the download request captures them and decodes them. Because WiFi depends on radio waves, WiFi networks can be disrupted by interference caused by other WiFi networks or various electronic appliances, including microwave ovens, cordless telephones, refrigerators, televisions, transistor radios, or Bluetooth devices.
To ensure optimal WiFi performance, network administrators often rely on WiFi analyzers such as NetSpot to visualize, manage, and troubleshoot WiFi connections. NetSpot can generate a comprehensive visual map of WiFi networks, highlight areas of signal weakness, and reveal potential causes of interference.
In the current era of omnipresent WiFi networks, a tool like NetSpot is indispensable even when setting up a basic WiFi home network. As you can probably imagine, we can only scratch the surface of the IEEE In North America, the 2. The 5 GHz band is divided into a much larger number of channels, with each country applying its own regulations to the allowable channels.
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