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

Wi-Fi is a radio signal that is transmitted from a wireless route to a nearby device, translating the signal into data that you can see and use. This device transmits the radio signal back to the router, which connects to the Internet via telephone or cable.




How does Wi-Fi work?

Wi-Fi uses radio waves to transfer data from your wireless route to your Wi-Fi enabled devices such as your TV, smartphone, tablet, and computer. Because they interact with each other through airwaves, your devices and personal information may be at risk from hackers, cyber attacks and other threats. This is especially true when you connect to a public Wi-Fi network in places like a coffee shop or an airport. If possible, it is best to connect to a wireless network protected by a password or a personal hotspot.


On the technical side, the IEEE 802.11 standard defines the basic principles that allow communication with wireless devices using current Wi-Fi, including wireless routers and wireless access points. Wireless access points support different IEEE standards.


Each level is an amendment that was approved over time. Standards operate at different frequencies, bring different bandwidth, and support different number of channels.


What does Wi-Fi mean?

Wi-Fi is not an acronym; is a brand name coined by a marketing company that is intended to serve as a seal for collaborative marketing efforts.


What is a wireless access point?

Wireless access point (AP) allows wireless devices to connect to a wireless network. Having a Cisco wireless network makes it easy to bring new devices online and provides flexible support for mobile operators.

What the wireless access point to your network does is the same as what an amplifier does on a home stereo. The access point takes the bandwidth off the track and extends it so that more devices can reach the network from a distance. But the wireless access point does more than just extend Wi-Fi. It may also provide useful data about devices on the network, provide effective security, and serve other practical purposes.


What is a wireless router?

Wireless rugs are commonly found in homes. Hardware devices are used by Internet service providers to connect you to their cable or XDSL internet network.


A wireless router is sometimes called a wireless local area network (WLAN) device. A wireless network is also called a Wi-Fi network.



Wireless router combines the functions of a wireless access network network with a router. Learn more about wireless routers.


What is a Wi-Fi desktop router?

The most common way for users to connect to the wireless internet is to use a wireless desktop router (Wi-Fi). These routers look like small boxes with many short antennas to help transmit signal throughout the house or work. When a user moves away from a basic Wi-Fi hotspot, the signal becomes weaker. So many wireless routers, called range extenders, are usually installed throughout the workplace. Wi-Fi range extensions, listed, enhance or expand Internet access.


What is a mobile hotspot?

Mobile hotspot is a common feature on smartphones that have both a closed and offline connection. When you turn on your phone hotspot, you share your wireless network connection with other devices that can access the Internet.


What is a portable Wi-Fi hotspot?

A portable Wi-Fi hotspot is a mobile hotspot available through a mobile network company. It is a small device that uses mobile towers that transmit broadband signals at high 3G or 4G speeds. Many devices, such as iPads and laptops, can connect wirelessly to the device, which is easily connected to the Internet wherever you go. Like a mobile phone, the monthly cost of a portable hotspot is based on your data usage plan. Portable Wi-Fi hotspot is a more reliable way to access the Internet than searching for public Wi-Fi hotspots.



Types of Wi-Fi connections


Wireline / router

Many households are using a wireless router these days to access the Internet. Advantages include easy setup, navigation within WIFI access point (route) and the ability to connect multiple devices. Disadvantages: limited bandwidth and reduced speed as many devices are connected to the same WIFI network, as well as potential interruptions from other electromagnetic devices at home.



Mobile hotspot or jetpack

Mobile and dedicated hotspots have become the most popular way to securely connect on the go. Two common hotspot devices are your smartphone and jetpack. Most of any smartphone or tablet today can be used as a temporary hot spot and is a good option if you need it from time to time. It's easy to use and doesn't require the purchase of additional devices, but it can save battery life and data very quickly. On the other hand, the jetpack acts as a dedicated mobile hotspot that picks up signal from cell towers in your area just like your smartphone. Additional devices can connect to it and offer a wider range of Wi-Fi. And because it is a separate device, the battery power of your smartphone is unaffected. Too bad you have to buy a jetpack and a different system with your network company.


4G LTE Home Internet

If you live in a rural area where your internet options are limited, 4G LTE Home Internet is worth considering. It offers a high-speed internet service delivered via cell towers and mobile networks with an average download speed of around 25 MBPS, usually with less delays and more data than you get via satellite. Benefits of better speed and reliability depending on your network company. A few reductions in 4G LTE Home Internet may include limited availability and service costs and setup.


Broadband

Broadband is a broad bandwidth data transfer via high-speed internet connection.


So what is broadband? According to the FCC, the broadband internet definition is a minimum download of 25 MBPS and a download speed of 3 MBPS. Broadband provides high-speed internet access through a wide range of technologies including fiber optics, wireless, cable, DSL and satellite.



Bandwidth

Maximum amount of data transmitted over the Internet over a period of time.


Bandwidth is often mistaken for internet speed when in fact it is the volume of information that can be sent over the connection at a moderate amount of time - calculated by megabytes per second (MBPS).